Home / 1,078,711.74-1,488,765.15-649,230.30

Finding the Fourth Proportional to 1,078,711.74, 1,488,765.15 and 649,230.30

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Solution

The fourth proportional to 1,078,711.74, 1,488,765.15 and 649,230.30 is: 896,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,711.74 : 1,488,765.15 = 649,230.30 : x
  2. Step 2: Convert to fraction form
    1,078,711.74/1,488,765.15 = 649,230.30/x
  3. Step 3: Cross multiply
    1,078,711.74x = 1,488,765.15 × 649,230.30
  4. Step 4: Simplify right side
    1,078,711.74x = 966,551,444,964.05
  5. Step 5: Solve for x
    x = 966,551,444,964.05/1,078,711.74
  6. Step 6: Final answer
    x = 896,023.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.