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Finding the Fourth Proportional to 618,271.02, 851,757.39 and 581,070.15

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Solution

The fourth proportional to 618,271.02, 851,757.39 and 581,070.15 is: 800,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,271.02 : 851,757.39 = 581,070.15 : x
  2. Step 2: Convert to fraction form
    618,271.02/851,757.39 = 581,070.15/x
  3. Step 3: Cross multiply
    618,271.02x = 851,757.39 × 581,070.15
  4. Step 4: Simplify right side
    618,271.02x = 494,930,794,370.91
  5. Step 5: Solve for x
    x = 494,930,794,370.91/618,271.02
  6. Step 6: Final answer
    x = 800,507.83

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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.