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Finding the Fourth Proportional to 572,414.40, 858,718.80 and 306,102.60

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Solution

The fourth proportional to 572,414.40, 858,718.80 and 306,102.60 is: 459,205.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,414.40 : 858,718.80 = 306,102.60 : x
  2. Step 2: Convert to fraction form
    572,414.40/858,718.80 = 306,102.60/x
  3. Step 3: Cross multiply
    572,414.40x = 858,718.80 × 306,102.60
  4. Step 4: Simplify right side
    572,414.40x = 262,856,057,348.88
  5. Step 5: Solve for x
    x = 262,856,057,348.88/572,414.40
  6. Step 6: Final answer
    x = 459,205.88

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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.