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Finding the Fourth Proportional to 522,977.92, 784,887.20 and 270,332.40

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Solution

The fourth proportional to 522,977.92, 784,887.20 and 270,332.40 is: 405,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,977.92 : 784,887.20 = 270,332.40 : x
  2. Step 2: Convert to fraction form
    522,977.92/784,887.20 = 270,332.40/x
  3. Step 3: Cross multiply
    522,977.92x = 784,887.20 × 270,332.40
  4. Step 4: Simplify right side
    522,977.92x = 212,180,440,505.28
  5. Step 5: Solve for x
    x = 212,180,440,505.28/522,977.92
  6. Step 6: Final answer
    x = 405,715.87

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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.