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Finding the Fourth Proportional to 552,680.80, 829,021.20 and 286,960.30

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Solution

The fourth proportional to 552,680.80, 829,021.20 and 286,960.30 is: 430,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,680.80 : 829,021.20 = 286,960.30 : x
  2. Step 2: Convert to fraction form
    552,680.80/829,021.20 = 286,960.30/x
  3. Step 3: Cross multiply
    552,680.80x = 829,021.20 × 286,960.30
  4. Step 4: Simplify right side
    552,680.80x = 237,896,172,258.36
  5. Step 5: Solve for x
    x = 237,896,172,258.36/552,680.80
  6. Step 6: Final answer
    x = 430,440.45

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Similar ratio
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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.