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Finding the Fourth Proportional to 658,045.60, 987,298.80 and 284,336.80

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Solution

The fourth proportional to 658,045.60, 987,298.80 and 284,336.80 is: 426,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,045.60 : 987,298.80 = 284,336.80 : x
  2. Step 2: Convert to fraction form
    658,045.60/987,298.80 = 284,336.80/x
  3. Step 3: Cross multiply
    658,045.60x = 987,298.80 × 284,336.80
  4. Step 4: Simplify right side
    658,045.60x = 280,725,381,435.84
  5. Step 5: Solve for x
    x = 280,725,381,435.84/658,045.60
  6. Step 6: Final answer
    x = 426,604.75

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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.