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Finding the Fourth Proportional to 914,798, 1,262,421.24 and 557,102

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Solution

The fourth proportional to 914,798, 1,262,421.24 and 557,102 is: 768,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,798 : 1,262,421.24 = 557,102 : x
  2. Step 2: Convert to fraction form
    914,798/1,262,421.24 = 557,102/x
  3. Step 3: Cross multiply
    914,798x = 1,262,421.24 × 557,102
  4. Step 4: Simplify right side
    914,798x = 703,297,397,646.48
  5. Step 5: Solve for x
    x = 703,297,397,646.48/914,798
  6. Step 6: Final answer
    x = 768,800.76

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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.