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Finding the Fourth Proportional to 634,014.25, 875,029.17 and 392,374.65

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Solution

The fourth proportional to 634,014.25, 875,029.17 and 392,374.65 is: 541,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,014.25 : 875,029.17 = 392,374.65 : x
  2. Step 2: Convert to fraction form
    634,014.25/875,029.17 = 392,374.65/x
  3. Step 3: Cross multiply
    634,014.25x = 875,029.17 × 392,374.65
  4. Step 4: Simplify right side
    634,014.25x = 343,339,264,318.54
  5. Step 5: Solve for x
    x = 343,339,264,318.54/634,014.25
  6. Step 6: Final answer
    x = 541,532.41

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1.5x scale

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.