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Finding the Fourth Proportional to 664,306.20, 996,459.30 and 604,171.80

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Solution

The fourth proportional to 664,306.20, 996,459.30 and 604,171.80 is: 906,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306.20 : 996,459.30 = 604,171.80 : x
  2. Step 2: Convert to fraction form
    664,306.20/996,459.30 = 604,171.80/x
  3. Step 3: Cross multiply
    664,306.20x = 996,459.30 × 604,171.80
  4. Step 4: Simplify right side
    664,306.20x = 602,032,608,907.74
  5. Step 5: Solve for x
    x = 602,032,608,907.74/664,306.20
  6. Step 6: Final answer
    x = 906,257.70

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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.