Home / 431,262.20-646,979.70-361,623.80

Finding the Fourth Proportional to 431,262.20, 646,979.70 and 361,623.80

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Solution

The fourth proportional to 431,262.20, 646,979.70 and 361,623.80 is: 542,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,262.20 : 646,979.70 = 361,623.80 : x
  2. Step 2: Convert to fraction form
    431,262.20/646,979.70 = 361,623.80/x
  3. Step 3: Cross multiply
    431,262.20x = 646,979.70 × 361,623.80
  4. Step 4: Simplify right side
    431,262.20x = 233,963,257,636.86
  5. Step 5: Solve for x
    x = 233,963,257,636.86/431,262.20
  6. Step 6: Final answer
    x = 542,508.15

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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.