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Finding the Fourth Proportional to 882,154.92, 1,323,311.32 and 342,398.56

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Solution

The fourth proportional to 882,154.92, 1,323,311.32 and 342,398.56 is: 513,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,154.92 : 1,323,311.32 = 342,398.56 : x
  2. Step 2: Convert to fraction form
    882,154.92/1,323,311.32 = 342,398.56/x
  3. Step 3: Cross multiply
    882,154.92x = 1,323,311.32 × 342,398.56
  4. Step 4: Simplify right side
    882,154.92x = 453,099,890,399.70
  5. Step 5: Solve for x
    x = 453,099,890,399.70/882,154.92
  6. Step 6: Final answer
    x = 513,628.48

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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.