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Finding the Fourth Proportional to 657,915.60, 987,267.06 and 604,377.84

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Solution

The fourth proportional to 657,915.60, 987,267.06 and 604,377.84 is: 906,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,915.60 : 987,267.06 = 604,377.84 : x
  2. Step 2: Convert to fraction form
    657,915.60/987,267.06 = 604,377.84/x
  3. Step 3: Cross multiply
    657,915.60x = 987,267.06 × 604,377.84
  4. Step 4: Simplify right side
    657,915.60x = 596,682,333,225.95
  5. Step 5: Solve for x
    x = 596,682,333,225.95/657,915.60
  6. Step 6: Final answer
    x = 906,928.39

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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.