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Finding the Fourth Proportional to 452,784.32, 679,211.04 and 120,351.68

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Solution

The fourth proportional to 452,784.32, 679,211.04 and 120,351.68 is: 180,536.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,784.32 : 679,211.04 = 120,351.68 : x
  2. Step 2: Convert to fraction form
    452,784.32/679,211.04 = 120,351.68/x
  3. Step 3: Cross multiply
    452,784.32x = 679,211.04 × 120,351.68
  4. Step 4: Simplify right side
    452,784.32x = 81,744,189,738.55
  5. Step 5: Solve for x
    x = 81,744,189,738.55/452,784.32
  6. Step 6: Final answer
    x = 180,536.71

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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.