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Finding the Fourth Proportional to 978,965.57, 1,468,526.84 and 372,044.64

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Solution

The fourth proportional to 978,965.57, 1,468,526.84 and 372,044.64 is: 558,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,965.57 : 1,468,526.84 = 372,044.64 : x
  2. Step 2: Convert to fraction form
    978,965.57/1,468,526.84 = 372,044.64/x
  3. Step 3: Cross multiply
    978,965.57x = 1,468,526.84 × 372,044.64
  4. Step 4: Simplify right side
    978,965.57x = 546,357,536,776.93
  5. Step 5: Solve for x
    x = 546,357,536,776.93/978,965.57
  6. Step 6: Final answer
    x = 558,096.79

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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.