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Finding the Fourth Proportional to 452,519.56, 678,779.04 and 115,560.28

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Solution

The fourth proportional to 452,519.56, 678,779.04 and 115,560.28 is: 173,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,519.56 : 678,779.04 = 115,560.28 : x
  2. Step 2: Convert to fraction form
    452,519.56/678,779.04 = 115,560.28/x
  3. Step 3: Cross multiply
    452,519.56x = 678,779.04 × 115,560.28
  4. Step 4: Simplify right side
    452,519.56x = 78,439,895,920.53
  5. Step 5: Solve for x
    x = 78,439,895,920.53/452,519.56
  6. Step 6: Final answer
    x = 173,340.34

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Similar ratio
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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.