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Finding the Fourth Proportional to 634,010.25, 875,023.65 and 392,370.65

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Solution

The fourth proportional to 634,010.25, 875,023.65 and 392,370.65 is: 541,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,010.25 : 875,023.65 = 392,370.65 : x
  2. Step 2: Convert to fraction form
    634,010.25/875,023.65 = 392,370.65/x
  3. Step 3: Cross multiply
    634,010.25x = 875,023.65 × 392,370.65
  4. Step 4: Simplify right side
    634,010.25x = 343,333,593,940.75
  5. Step 5: Solve for x
    x = 343,333,593,940.75/634,010.25
  6. Step 6: Final answer
    x = 541,526.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.