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Finding the Fourth Proportional to 574,453, 861,678.96 and 258,540.76

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Solution

The fourth proportional to 574,453, 861,678.96 and 258,540.76 is: 387,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,453 : 861,678.96 = 258,540.76 : x
  2. Step 2: Convert to fraction form
    574,453/861,678.96 = 258,540.76/x
  3. Step 3: Cross multiply
    574,453x = 861,678.96 × 258,540.76
  4. Step 4: Simplify right side
    574,453x = 222,779,133,194.41
  5. Step 5: Solve for x
    x = 222,779,133,194.41/574,453
  6. Step 6: Final answer
    x = 387,810.90

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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.