Home / 916,933.60-1,375,400.40-636,997.60

Finding the Fourth Proportional to 916,933.60, 1,375,400.40 and 636,997.60

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Solution

The fourth proportional to 916,933.60, 1,375,400.40 and 636,997.60 is: 955,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,933.60 : 1,375,400.40 = 636,997.60 : x
  2. Step 2: Convert to fraction form
    916,933.60/1,375,400.40 = 636,997.60/x
  3. Step 3: Cross multiply
    916,933.60x = 1,375,400.40 × 636,997.60
  4. Step 4: Simplify right side
    916,933.60x = 876,126,753,839.04
  5. Step 5: Solve for x
    x = 876,126,753,839.04/916,933.60
  6. Step 6: Final answer
    x = 955,496.40

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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.