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Finding the Fourth Proportional to 459,388.80, 688,800.96 and 178,578.72

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Solution

The fourth proportional to 459,388.80, 688,800.96 and 178,578.72 is: 267,758.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,388.80 : 688,800.96 = 178,578.72 : x
  2. Step 2: Convert to fraction form
    459,388.80/688,800.96 = 178,578.72/x
  3. Step 3: Cross multiply
    459,388.80x = 688,800.96 × 178,578.72
  4. Step 4: Simplify right side
    459,388.80x = 123,005,193,771.57
  5. Step 5: Solve for x
    x = 123,005,193,771.57/459,388.80
  6. Step 6: Final answer
    x = 267,758.36

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1.5x scale

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.