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Finding the Fourth Proportional to 452,609.64, 678,895.02 and 115,658.55

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Solution

The fourth proportional to 452,609.64, 678,895.02 and 115,658.55 is: 173,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,609.64 : 678,895.02 = 115,658.55 : x
  2. Step 2: Convert to fraction form
    452,609.64/678,895.02 = 115,658.55/x
  3. Step 3: Cross multiply
    452,609.64x = 678,895.02 × 115,658.55
  4. Step 4: Simplify right side
    452,609.64x = 78,520,013,615.42
  5. Step 5: Solve for x
    x = 78,520,013,615.42/452,609.64
  6. Step 6: Final answer
    x = 173,482.86

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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.