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Finding the Fourth Proportional to 522,935.87, 784,300.53 and 143,758.78

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Solution

The fourth proportional to 522,935.87, 784,300.53 and 143,758.78 is: 215,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,935.87 : 784,300.53 = 143,758.78 : x
  2. Step 2: Convert to fraction form
    522,935.87/784,300.53 = 143,758.78/x
  3. Step 3: Cross multiply
    522,935.87x = 784,300.53 × 143,758.78
  4. Step 4: Simplify right side
    522,935.87x = 112,750,087,346.15
  5. Step 5: Solve for x
    x = 112,750,087,346.15/522,935.87
  6. Step 6: Final answer
    x = 215,609.78

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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.