Home / 663,127.16-915,115.48-361,321.16

Finding the Fourth Proportional to 663,127.16, 915,115.48 and 361,321.16

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Solution

The fourth proportional to 663,127.16, 915,115.48 and 361,321.16 is: 498,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,127.16 : 915,115.48 = 361,321.16 : x
  2. Step 2: Convert to fraction form
    663,127.16/915,115.48 = 361,321.16/x
  3. Step 3: Cross multiply
    663,127.16x = 915,115.48 × 361,321.16
  4. Step 4: Simplify right side
    663,127.16x = 330,650,583,321.11
  5. Step 5: Solve for x
    x = 330,650,583,321.11/663,127.16
  6. Step 6: Final answer
    x = 498,623.20

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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.