Home / 3,121,437.92-4,678,964.30-1,581,580.78

Finding the Fourth Proportional to 3,121,437.92, 4,678,964.30 and 1,581,580.78

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Solution

The fourth proportional to 3,121,437.92, 4,678,964.30 and 1,581,580.78 is: 2,370,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,437.92 : 4,678,964.30 = 1,581,580.78 : x
  2. Step 2: Convert to fraction form
    3,121,437.92/4,678,964.30 = 1,581,580.78/x
  3. Step 3: Cross multiply
    3,121,437.92x = 4,678,964.30 × 1,581,580.78
  4. Step 4: Simplify right side
    3,121,437.92x = 7,400,159,999,442.70
  5. Step 5: Solve for x
    x = 7,400,159,999,442.70/3,121,437.92
  6. Step 6: Final answer
    x = 2,370,753.54

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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.