Home / 916,934.60-1,375,401.90-636,998.60

Finding the Fourth Proportional to 916,934.60, 1,375,401.90 and 636,998.60

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Solution

The fourth proportional to 916,934.60, 1,375,401.90 and 636,998.60 is: 955,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,934.60 : 1,375,401.90 = 636,998.60 : x
  2. Step 2: Convert to fraction form
    916,934.60/1,375,401.90 = 636,998.60/x
  3. Step 3: Cross multiply
    916,934.60x = 1,375,401.90 × 636,998.60
  4. Step 4: Simplify right side
    916,934.60x = 876,129,084,737.34
  5. Step 5: Solve for x
    x = 876,129,084,737.34/916,934.60
  6. Step 6: Final answer
    x = 955,497.90

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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.