Home / 954,643.20-1,431,999.36-323,617.92

Finding the Fourth Proportional to 954,643.20, 1,431,999.36 and 323,617.92

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Solution

The fourth proportional to 954,643.20, 1,431,999.36 and 323,617.92 is: 485,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    954,643.20 : 1,431,999.36 = 323,617.92 : x
  2. Step 2: Convert to fraction form
    954,643.20/1,431,999.36 = 323,617.92/x
  3. Step 3: Cross multiply
    954,643.20x = 1,431,999.36 × 323,617.92
  4. Step 4: Simplify right side
    954,643.20x = 463,420,654,324.53
  5. Step 5: Solve for x
    x = 463,420,654,324.53/954,643.20
  6. Step 6: Final answer
    x = 485,438.60

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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.