Home / 765,788.59-1,148,683.16-344,572.39

Finding the Fourth Proportional to 765,788.59, 1,148,683.16 and 344,572.39

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Solution

The fourth proportional to 765,788.59, 1,148,683.16 and 344,572.39 is: 516,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,788.59 : 1,148,683.16 = 344,572.39 : x
  2. Step 2: Convert to fraction form
    765,788.59/1,148,683.16 = 344,572.39/x
  3. Step 3: Cross multiply
    765,788.59x = 1,148,683.16 × 344,572.39
  4. Step 4: Simplify right side
    765,788.59x = 395,804,501,793.95
  5. Step 5: Solve for x
    x = 395,804,501,793.95/765,788.59
  6. Step 6: Final answer
    x = 516,858.71

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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.