Home / 1,123,902.30-1,685,853.45-1,105,239.90

Finding the Fourth Proportional to 1,123,902.30, 1,685,853.45 and 1,105,239.90

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Solution

The fourth proportional to 1,123,902.30, 1,685,853.45 and 1,105,239.90 is: 1,657,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,902.30 : 1,685,853.45 = 1,105,239.90 : x
  2. Step 2: Convert to fraction form
    1,123,902.30/1,685,853.45 = 1,105,239.90/x
  3. Step 3: Cross multiply
    1,123,902.30x = 1,685,853.45 × 1,105,239.90
  4. Step 4: Simplify right side
    1,123,902.30x = 1,863,272,498,492.65
  5. Step 5: Solve for x
    x = 1,863,272,498,492.65/1,123,902.30
  6. Step 6: Final answer
    x = 1,657,859.85

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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.