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Finding the Fourth Proportional to 347,411.96, 520,545.54 and 318,359.96

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Solution

The fourth proportional to 347,411.96, 520,545.54 and 318,359.96 is: 477,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,411.96 : 520,545.54 = 318,359.96 : x
  2. Step 2: Convert to fraction form
    347,411.96/520,545.54 = 318,359.96/x
  3. Step 3: Cross multiply
    347,411.96x = 520,545.54 × 318,359.96
  4. Step 4: Simplify right side
    347,411.96x = 165,720,857,292.58
  5. Step 5: Solve for x
    x = 165,720,857,292.58/347,411.96
  6. Step 6: Final answer
    x = 477,015.41

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1.5x scale

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.