Home / 663,127.02-915,115.29-361,321.02

Finding the Fourth Proportional to 663,127.02, 915,115.29 and 361,321.02

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Solution

The fourth proportional to 663,127.02, 915,115.29 and 361,321.02 is: 498,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,127.02 : 915,115.29 = 361,321.02 : x
  2. Step 2: Convert to fraction form
    663,127.02/915,115.29 = 361,321.02/x
  3. Step 3: Cross multiply
    663,127.02x = 915,115.29 × 361,321.02
  4. Step 4: Simplify right side
    663,127.02x = 330,650,386,309.12
  5. Step 5: Solve for x
    x = 330,650,386,309.12/663,127.02
  6. Step 6: Final answer
    x = 498,623.01

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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.