Home / 764,930.39-1,144,565.40-461,500.54

Finding the Fourth Proportional to 764,930.39, 1,144,565.40 and 461,500.54

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Solution

The fourth proportional to 764,930.39, 1,144,565.40 and 461,500.54 is: 690,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,930.39 : 1,144,565.40 = 461,500.54 : x
  2. Step 2: Convert to fraction form
    764,930.39/1,144,565.40 = 461,500.54/x
  3. Step 3: Cross multiply
    764,930.39x = 1,144,565.40 × 461,500.54
  4. Step 4: Simplify right side
    764,930.39x = 528,217,549,034.53
  5. Step 5: Solve for x
    x = 528,217,549,034.53/764,930.39
  6. Step 6: Final answer
    x = 690,543.30

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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.