Home / 1,109,000.30-1,664,278.05-478,366.70

Finding the Fourth Proportional to 1,109,000.30, 1,664,278.05 and 478,366.70

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Solution

The fourth proportional to 1,109,000.30, 1,664,278.05 and 478,366.70 is: 717,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,000.30 : 1,664,278.05 = 478,366.70 : x
  2. Step 2: Convert to fraction form
    1,109,000.30/1,664,278.05 = 478,366.70/x
  3. Step 3: Cross multiply
    1,109,000.30x = 1,664,278.05 × 478,366.70
  4. Step 4: Simplify right side
    1,109,000.30x = 796,135,198,660.94
  5. Step 5: Solve for x
    x = 796,135,198,660.94/1,109,000.30
  6. Step 6: Final answer
    x = 717,885.47

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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.