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Finding the Fourth Proportional to 677,819.26, 935,359 and 371,888.74

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Solution

The fourth proportional to 677,819.26, 935,359 and 371,888.74 is: 513,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,819.26 : 935,359 = 371,888.74 : x
  2. Step 2: Convert to fraction form
    677,819.26/935,359 = 371,888.74/x
  3. Step 3: Cross multiply
    677,819.26x = 935,359 × 371,888.74
  4. Step 4: Simplify right side
    677,819.26x = 347,849,479,957.66
  5. Step 5: Solve for x
    x = 347,849,479,957.66/677,819.26
  6. Step 6: Final answer
    x = 513,189.14

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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.