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Finding the Fourth Proportional to 452,559.28, 678,926.24 and 172,054.68

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Solution

The fourth proportional to 452,559.28, 678,926.24 and 172,054.68 is: 258,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,559.28 : 678,926.24 = 172,054.68 : x
  2. Step 2: Convert to fraction form
    452,559.28/678,926.24 = 172,054.68/x
  3. Step 3: Cross multiply
    452,559.28x = 678,926.24 × 172,054.68
  4. Step 4: Simplify right side
    452,559.28x = 116,812,436,966.80
  5. Step 5: Solve for x
    x = 116,812,436,966.80/452,559.28
  6. Step 6: Final answer
    x = 258,115.22

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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.