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Finding the Fourth Proportional to 851,066.80, 1,275,514.80 and 451,898.80

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Solution

The fourth proportional to 851,066.80, 1,275,514.80 and 451,898.80 is: 677,271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,066.80 : 1,275,514.80 = 451,898.80 : x
  2. Step 2: Convert to fraction form
    851,066.80/1,275,514.80 = 451,898.80/x
  3. Step 3: Cross multiply
    851,066.80x = 1,275,514.80 × 451,898.80
  4. Step 4: Simplify right side
    851,066.80x = 576,403,607,502.24
  5. Step 5: Solve for x
    x = 576,403,607,502.24/851,066.80
  6. Step 6: Final answer
    x = 677,271.88

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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.