Home / 5,301,841.20-7,952,761.80-1,312,753.20

Finding the Fourth Proportional to 5,301,841.20, 7,952,761.80 and 1,312,753.20

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Solution

The fourth proportional to 5,301,841.20, 7,952,761.80 and 1,312,753.20 is: 1,969,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,301,841.20 : 7,952,761.80 = 1,312,753.20 : x
  2. Step 2: Convert to fraction form
    5,301,841.20/7,952,761.80 = 1,312,753.20/x
  3. Step 3: Cross multiply
    5,301,841.20x = 7,952,761.80 × 1,312,753.20
  4. Step 4: Simplify right side
    5,301,841.20x = 10,440,013,501,787.76
  5. Step 5: Solve for x
    x = 10,440,013,501,787.76/5,301,841.20
  6. Step 6: Final answer
    x = 1,969,129.80

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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.