Home / 1,127,480.74-1,690,962.31-672,200.80

Finding the Fourth Proportional to 1,127,480.74, 1,690,962.31 and 672,200.80

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Solution

The fourth proportional to 1,127,480.74, 1,690,962.31 and 672,200.80 is: 1,008,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,480.74 : 1,690,962.31 = 672,200.80 : x
  2. Step 2: Convert to fraction form
    1,127,480.74/1,690,962.31 = 672,200.80/x
  3. Step 3: Cross multiply
    1,127,480.74x = 1,690,962.31 × 672,200.80
  4. Step 4: Simplify right side
    1,127,480.74x = 1,136,666,205,736.03
  5. Step 5: Solve for x
    x = 1,136,666,205,736.03/1,127,480.74
  6. Step 6: Final answer
    x = 1,008,146.90

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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.