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Finding the Fourth Proportional to 658,049.60, 987,304.80 and 284,340.80

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Solution

The fourth proportional to 658,049.60, 987,304.80 and 284,340.80 is: 426,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,049.60 : 987,304.80 = 284,340.80 : x
  2. Step 2: Convert to fraction form
    658,049.60/987,304.80 = 284,340.80/x
  3. Step 3: Cross multiply
    658,049.60x = 987,304.80 × 284,340.80
  4. Step 4: Simplify right side
    658,049.60x = 280,731,036,675.84
  5. Step 5: Solve for x
    x = 280,731,036,675.84/658,049.60
  6. Step 6: Final answer
    x = 426,610.75

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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.