Home / 1,331,138.40-1,996,999.20-532,219.20

Finding the Fourth Proportional to 1,331,138.40, 1,996,999.20 and 532,219.20

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Solution

The fourth proportional to 1,331,138.40, 1,996,999.20 and 532,219.20 is: 798,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,138.40 : 1,996,999.20 = 532,219.20 : x
  2. Step 2: Convert to fraction form
    1,331,138.40/1,996,999.20 = 532,219.20/x
  3. Step 3: Cross multiply
    1,331,138.40x = 1,996,999.20 × 532,219.20
  4. Step 4: Simplify right side
    1,331,138.40x = 1,062,841,316,624.64
  5. Step 5: Solve for x
    x = 1,062,841,316,624.64/1,331,138.40
  6. Step 6: Final answer
    x = 798,445.39

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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.