Home / 1,687,620.15-2,328,898.05-913,234.04

Finding the Fourth Proportional to 1,687,620.15, 2,328,898.05 and 913,234.04

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Solution

The fourth proportional to 1,687,620.15, 2,328,898.05 and 913,234.04 is: 1,260,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,620.15 : 2,328,898.05 = 913,234.04 : x
  2. Step 2: Convert to fraction form
    1,687,620.15/2,328,898.05 = 913,234.04/x
  3. Step 3: Cross multiply
    1,687,620.15x = 2,328,898.05 × 913,234.04
  4. Step 4: Simplify right side
    1,687,620.15x = 2,126,828,974,949.62
  5. Step 5: Solve for x
    x = 2,126,828,974,949.62/1,687,620.15
  6. Step 6: Final answer
    x = 1,260,253.37

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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.