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Finding the Fourth Proportional to 715,658.60, 987,702.18 and 461,748.44

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Solution

The fourth proportional to 715,658.60, 987,702.18 and 461,748.44 is: 637,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,658.60 : 987,702.18 = 461,748.44 : x
  2. Step 2: Convert to fraction form
    715,658.60/987,702.18 = 461,748.44/x
  3. Step 3: Cross multiply
    715,658.60x = 987,702.18 × 461,748.44
  4. Step 4: Simplify right side
    715,658.60x = 456,069,940,799.60
  5. Step 5: Solve for x
    x = 456,069,940,799.60/715,658.60
  6. Step 6: Final answer
    x = 637,273.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.