Home / 818,000.26-1,128,548.12-473,648.20

Finding the Fourth Proportional to 818,000.26, 1,128,548.12 and 473,648.20

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Solution

The fourth proportional to 818,000.26, 1,128,548.12 and 473,648.20 is: 653,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,000.26 : 1,128,548.12 = 473,648.20 : x
  2. Step 2: Convert to fraction form
    818,000.26/1,128,548.12 = 473,648.20/x
  3. Step 3: Cross multiply
    818,000.26x = 1,128,548.12 × 473,648.20
  4. Step 4: Simplify right side
    818,000.26x = 534,534,785,651.38
  5. Step 5: Solve for x
    x = 534,534,785,651.38/818,000.26
  6. Step 6: Final answer
    x = 653,465.30

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Half scale
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Double scale
Find fourth proportional to 818,001.26, 1,128,549.50 and 473,649.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.