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Finding the Fourth Proportional to 1,762,828.10, 2,645,116.95 and 1,005,251.30

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Solution

The fourth proportional to 1,762,828.10, 2,645,116.95 and 1,005,251.30 is: 1,508,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762,828.10 : 2,645,116.95 = 1,005,251.30 : x
  2. Step 2: Convert to fraction form
    1,762,828.10/2,645,116.95 = 1,005,251.30/x
  3. Step 3: Cross multiply
    1,762,828.10x = 2,645,116.95 × 1,005,251.30
  4. Step 4: Simplify right side
    1,762,828.10x = 2,659,007,252,639.54
  5. Step 5: Solve for x
    x = 2,659,007,252,639.54/1,762,828.10
  6. Step 6: Final answer
    x = 1,508,375.80

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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.