Home / 847,868.76-1,170,111.24-485,284.90

Finding the Fourth Proportional to 847,868.76, 1,170,111.24 and 485,284.90

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Solution

The fourth proportional to 847,868.76, 1,170,111.24 and 485,284.90 is: 669,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,868.76 : 1,170,111.24 = 485,284.90 : x
  2. Step 2: Convert to fraction form
    847,868.76/1,170,111.24 = 485,284.90/x
  3. Step 3: Cross multiply
    847,868.76x = 1,170,111.24 × 485,284.90
  4. Step 4: Simplify right side
    847,868.76x = 567,837,316,092.28
  5. Step 5: Solve for x
    x = 567,837,316,092.28/847,868.76
  6. Step 6: Final answer
    x = 669,723.13

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Double scale
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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.