Home / 765,799.40-1,148,699.28-344,583.20

Finding the Fourth Proportional to 765,799.40, 1,148,699.28 and 344,583.20

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Solution

The fourth proportional to 765,799.40, 1,148,699.28 and 344,583.20 is: 516,874.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,799.40 : 1,148,699.28 = 344,583.20 : x
  2. Step 2: Convert to fraction form
    765,799.40/1,148,699.28 = 344,583.20/x
  3. Step 3: Cross multiply
    765,799.40x = 1,148,699.28 × 344,583.20
  4. Step 4: Simplify right side
    765,799.40x = 395,822,473,740.10
  5. Step 5: Solve for x
    x = 395,822,473,740.10/765,799.40
  6. Step 6: Final answer
    x = 516,874.88

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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.