Home / 1,691,002.72-2,536,500.72-428,836.96

Finding the Fourth Proportional to 1,691,002.72, 2,536,500.72 and 428,836.96

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Solution

The fourth proportional to 1,691,002.72, 2,536,500.72 and 428,836.96 is: 643,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,002.72 : 2,536,500.72 = 428,836.96 : x
  2. Step 2: Convert to fraction form
    1,691,002.72/2,536,500.72 = 428,836.96/x
  3. Step 3: Cross multiply
    1,691,002.72x = 2,536,500.72 × 428,836.96
  4. Step 4: Simplify right side
    1,691,002.72x = 1,087,745,257,802.61
  5. Step 5: Solve for x
    x = 1,087,745,257,802.61/1,691,002.72
  6. Step 6: Final answer
    x = 643,254.59

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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.