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Finding the Fourth Proportional to 634,007.25, 875,019.51 and 392,367.65

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Solution

The fourth proportional to 634,007.25, 875,019.51 and 392,367.65 is: 541,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,007.25 : 875,019.51 = 392,367.65 : x
  2. Step 2: Convert to fraction form
    634,007.25/875,019.51 = 392,367.65/x
  3. Step 3: Cross multiply
    634,007.25x = 875,019.51 × 392,367.65
  4. Step 4: Simplify right side
    634,007.25x = 343,329,344,467.75
  5. Step 5: Solve for x
    x = 343,329,344,467.75/634,007.25
  6. Step 6: Final answer
    x = 541,522.74

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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.