Home / 486,243.18-729,280.02-219,941.30

Finding the Fourth Proportional to 486,243.18, 729,280.02 and 219,941.30

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Solution

The fourth proportional to 486,243.18, 729,280.02 and 219,941.30 is: 329,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,243.18 : 729,280.02 = 219,941.30 : x
  2. Step 2: Convert to fraction form
    486,243.18/729,280.02 = 219,941.30/x
  3. Step 3: Cross multiply
    486,243.18x = 729,280.02 × 219,941.30
  4. Step 4: Simplify right side
    486,243.18x = 160,398,795,662.83
  5. Step 5: Solve for x
    x = 160,398,795,662.83/486,243.18
  6. Step 6: Final answer
    x = 329,873.62

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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.