Home / 749,390.66-1,123,089.50-649,081.17

Finding the Fourth Proportional to 749,390.66, 1,123,089.50 and 649,081.17

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Solution

The fourth proportional to 749,390.66, 1,123,089.50 and 649,081.17 is: 972,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,390.66 : 1,123,089.50 = 649,081.17 : x
  2. Step 2: Convert to fraction form
    749,390.66/1,123,089.50 = 649,081.17/x
  3. Step 3: Cross multiply
    749,390.66x = 1,123,089.50 × 649,081.17
  4. Step 4: Simplify right side
    749,390.66x = 728,976,251,456.11
  5. Step 5: Solve for x
    x = 728,976,251,456.11/749,390.66
  6. Step 6: Final answer
    x = 972,758.65

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1.5x scale

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.