Home / 748,460.40-1,122,690.60-215,998.80

Finding the Fourth Proportional to 748,460.40, 1,122,690.60 and 215,998.80

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Solution

The fourth proportional to 748,460.40, 1,122,690.60 and 215,998.80 is: 323,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,460.40 : 1,122,690.60 = 215,998.80 : x
  2. Step 2: Convert to fraction form
    748,460.40/1,122,690.60 = 215,998.80/x
  3. Step 3: Cross multiply
    748,460.40x = 1,122,690.60 × 215,998.80
  4. Step 4: Simplify right side
    748,460.40x = 242,499,822,371.28
  5. Step 5: Solve for x
    x = 242,499,822,371.28/748,460.40
  6. Step 6: Final answer
    x = 323,998.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.