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Finding the Fourth Proportional to 658,006.40, 987,470.40 and 284,297.60

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Solution

The fourth proportional to 658,006.40, 987,470.40 and 284,297.60 is: 426,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,006.40 : 987,470.40 = 284,297.60 : x
  2. Step 2: Convert to fraction form
    658,006.40/987,470.40 = 284,297.60/x
  3. Step 3: Cross multiply
    658,006.40x = 987,470.40 × 284,297.60
  4. Step 4: Simplify right side
    658,006.40x = 280,735,464,791.04
  5. Step 5: Solve for x
    x = 280,735,464,791.04/658,006.40
  6. Step 6: Final answer
    x = 426,645.49

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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.