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Finding the Fourth Proportional to 658,935.90, 988,403.85 and 607,614.30

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Solution

The fourth proportional to 658,935.90, 988,403.85 and 607,614.30 is: 911,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,935.90 : 988,403.85 = 607,614.30 : x
  2. Step 2: Convert to fraction form
    658,935.90/988,403.85 = 607,614.30/x
  3. Step 3: Cross multiply
    658,935.90x = 988,403.85 × 607,614.30
  4. Step 4: Simplify right side
    658,935.90x = 600,568,313,435.06
  5. Step 5: Solve for x
    x = 600,568,313,435.06/658,935.90
  6. Step 6: Final answer
    x = 911,421.45

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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.