Home / 1,128,375.60-1,691,484.60-418,213.20

Finding the Fourth Proportional to 1,128,375.60, 1,691,484.60 and 418,213.20

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Solution

The fourth proportional to 1,128,375.60, 1,691,484.60 and 418,213.20 is: 626,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,375.60 : 1,691,484.60 = 418,213.20 : x
  2. Step 2: Convert to fraction form
    1,128,375.60/1,691,484.60 = 418,213.20/x
  3. Step 3: Cross multiply
    1,128,375.60x = 1,691,484.60 × 418,213.20
  4. Step 4: Simplify right side
    1,128,375.60x = 707,401,187,316.72
  5. Step 5: Solve for x
    x = 707,401,187,316.72/1,128,375.60
  6. Step 6: Final answer
    x = 626,919.96

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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.