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Finding the Fourth Proportional to 914,801, 1,262,425.38 and 557,105

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Solution

The fourth proportional to 914,801, 1,262,425.38 and 557,105 is: 768,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,801 : 1,262,425.38 = 557,105 : x
  2. Step 2: Convert to fraction form
    914,801/1,262,425.38 = 557,105/x
  3. Step 3: Cross multiply
    914,801x = 1,262,425.38 × 557,105
  4. Step 4: Simplify right side
    914,801x = 703,303,491,324.90
  5. Step 5: Solve for x
    x = 703,303,491,324.90/914,801
  6. Step 6: Final answer
    x = 768,804.90

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1.5x scale

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.