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Finding the Fourth Proportional to 615,252.90, 923,025.15 and 315,779.70

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Solution

The fourth proportional to 615,252.90, 923,025.15 and 315,779.70 is: 473,744.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,252.90 : 923,025.15 = 315,779.70 : x
  2. Step 2: Convert to fraction form
    615,252.90/923,025.15 = 315,779.70/x
  3. Step 3: Cross multiply
    615,252.90x = 923,025.15 × 315,779.70
  4. Step 4: Simplify right side
    615,252.90x = 291,472,604,959.46
  5. Step 5: Solve for x
    x = 291,472,604,959.46/615,252.90
  6. Step 6: Final answer
    x = 473,744.38

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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.