Home / 819,613.76-1,229,125.08-346,335.80

Finding the Fourth Proportional to 819,613.76, 1,229,125.08 and 346,335.80

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Solution

The fourth proportional to 819,613.76, 1,229,125.08 and 346,335.80 is: 519,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,613.76 : 1,229,125.08 = 346,335.80 : x
  2. Step 2: Convert to fraction form
    819,613.76/1,229,125.08 = 346,335.80/x
  3. Step 3: Cross multiply
    819,613.76x = 1,229,125.08 × 346,335.80
  4. Step 4: Simplify right side
    819,613.76x = 425,690,017,881.86
  5. Step 5: Solve for x
    x = 425,690,017,881.86/819,613.76
  6. Step 6: Final answer
    x = 519,378.81

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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.