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Finding the Fourth Proportional to 658,934.40, 988,401.60 and 607,612.80

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Solution

The fourth proportional to 658,934.40, 988,401.60 and 607,612.80 is: 911,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,934.40 : 988,401.60 = 607,612.80 : x
  2. Step 2: Convert to fraction form
    658,934.40/988,401.60 = 607,612.80/x
  3. Step 3: Cross multiply
    658,934.40x = 988,401.60 × 607,612.80
  4. Step 4: Simplify right side
    658,934.40x = 600,565,463,700.48
  5. Step 5: Solve for x
    x = 600,565,463,700.48/658,934.40
  6. Step 6: Final answer
    x = 911,419.20

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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.