Home / 1,218,909.87-1,830,136.28-900,045.27

Finding the Fourth Proportional to 1,218,909.87, 1,830,136.28 and 900,045.27

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Solution

The fourth proportional to 1,218,909.87, 1,830,136.28 and 900,045.27 is: 1,351,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,909.87 : 1,830,136.28 = 900,045.27 : x
  2. Step 2: Convert to fraction form
    1,218,909.87/1,830,136.28 = 900,045.27/x
  3. Step 3: Cross multiply
    1,218,909.87x = 1,830,136.28 × 900,045.27
  4. Step 4: Simplify right side
    1,218,909.87x = 1,647,205,497,769.17
  5. Step 5: Solve for x
    x = 1,647,205,497,769.17/1,218,909.87
  6. Step 6: Final answer
    x = 1,351,375.96

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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.