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Finding the Fourth Proportional to 664,323.90, 993,861.45 and 576,552.30

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Solution

The fourth proportional to 664,323.90, 993,861.45 and 576,552.30 is: 862,550.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,323.90 : 993,861.45 = 576,552.30 : x
  2. Step 2: Convert to fraction form
    664,323.90/993,861.45 = 576,552.30/x
  3. Step 3: Cross multiply
    664,323.90x = 993,861.45 × 576,552.30
  4. Step 4: Simplify right side
    664,323.90x = 573,013,104,878.84
  5. Step 5: Solve for x
    x = 573,013,104,878.84/664,323.90
  6. Step 6: Final answer
    x = 862,550.79

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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.