Home / 1,145,446.78-1,580,720.25-636,149.16

Finding the Fourth Proportional to 1,145,446.78, 1,580,720.25 and 636,149.16

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Solution

The fourth proportional to 1,145,446.78, 1,580,720.25 and 636,149.16 is: 877,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,446.78 : 1,580,720.25 = 636,149.16 : x
  2. Step 2: Convert to fraction form
    1,145,446.78/1,580,720.25 = 636,149.16/x
  3. Step 3: Cross multiply
    1,145,446.78x = 1,580,720.25 × 636,149.16
  4. Step 4: Simplify right side
    1,145,446.78x = 1,005,573,859,232.49
  5. Step 5: Solve for x
    x = 1,005,573,859,232.49/1,145,446.78
  6. Step 6: Final answer
    x = 877,887.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.