Home / 915,998.70-1,373,998.05-814,521.90

Finding the Fourth Proportional to 915,998.70, 1,373,998.05 and 814,521.90

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Solution

The fourth proportional to 915,998.70, 1,373,998.05 and 814,521.90 is: 1,221,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,998.70 : 1,373,998.05 = 814,521.90 : x
  2. Step 2: Convert to fraction form
    915,998.70/1,373,998.05 = 814,521.90/x
  3. Step 3: Cross multiply
    915,998.70x = 1,373,998.05 × 814,521.90
  4. Step 4: Simplify right side
    915,998.70x = 1,119,151,502,282.30
  5. Step 5: Solve for x
    x = 1,119,151,502,282.30/915,998.70
  6. Step 6: Final answer
    x = 1,221,782.85

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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.