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Finding the Fourth Proportional to 604,329.80, 906,494.70 and 391,753.40

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Solution

The fourth proportional to 604,329.80, 906,494.70 and 391,753.40 is: 587,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,329.80 : 906,494.70 = 391,753.40 : x
  2. Step 2: Convert to fraction form
    604,329.80/906,494.70 = 391,753.40/x
  3. Step 3: Cross multiply
    604,329.80x = 906,494.70 × 391,753.40
  4. Step 4: Simplify right side
    604,329.80x = 355,122,380,806.98
  5. Step 5: Solve for x
    x = 355,122,380,806.98/604,329.80
  6. Step 6: Final answer
    x = 587,630.10

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Similar ratio
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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.