Home / 678,684.90-1,016,476.89-323,948.04

Finding the Fourth Proportional to 678,684.90, 1,016,476.89 and 323,948.04

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Solution

The fourth proportional to 678,684.90, 1,016,476.89 and 323,948.04 is: 485,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,684.90 : 1,016,476.89 = 323,948.04 : x
  2. Step 2: Convert to fraction form
    678,684.90/1,016,476.89 = 323,948.04/x
  3. Step 3: Cross multiply
    678,684.90x = 1,016,476.89 × 323,948.04
  4. Step 4: Simplify right side
    678,684.90x = 329,285,696,220.80
  5. Step 5: Solve for x
    x = 329,285,696,220.80/678,684.90
  6. Step 6: Final answer
    x = 485,182.00

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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.