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Finding the Fourth Proportional to 573,752.12, 858,945.81 and 402,379.88

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Solution

The fourth proportional to 573,752.12, 858,945.81 and 402,379.88 is: 602,389.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,752.12 : 858,945.81 = 402,379.88 : x
  2. Step 2: Convert to fraction form
    573,752.12/858,945.81 = 402,379.88/x
  3. Step 3: Cross multiply
    573,752.12x = 858,945.81 × 402,379.88
  4. Step 4: Simplify right side
    573,752.12x = 345,622,511,954.30
  5. Step 5: Solve for x
    x = 345,622,511,954.30/573,752.12
  6. Step 6: Final answer
    x = 602,389.95

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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.