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Finding the Fourth Proportional to 2,543,428, 3,815,732.80 and 746,238.88

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Solution

The fourth proportional to 2,543,428, 3,815,732.80 and 746,238.88 is: 1,119,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543,428 : 3,815,732.80 = 746,238.88 : x
  2. Step 2: Convert to fraction form
    2,543,428/3,815,732.80 = 746,238.88/x
  3. Step 3: Cross multiply
    2,543,428x = 3,815,732.80 × 746,238.88
  4. Step 4: Simplify right side
    2,543,428x = 2,847,448,171,051.26
  5. Step 5: Solve for x
    x = 2,847,448,171,051.26/2,543,428
  6. Step 6: Final answer
    x = 1,119,531.66

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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.