Home / 1,143,002.12-1,711,139.86-762,980.26

Finding the Fourth Proportional to 1,143,002.12, 1,711,139.86 and 762,980.26

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Solution

The fourth proportional to 1,143,002.12, 1,711,139.86 and 762,980.26 is: 1,142,225.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,002.12 : 1,711,139.86 = 762,980.26 : x
  2. Step 2: Convert to fraction form
    1,143,002.12/1,711,139.86 = 762,980.26/x
  3. Step 3: Cross multiply
    1,143,002.12x = 1,711,139.86 × 762,980.26
  4. Step 4: Simplify right side
    1,143,002.12x = 1,305,565,935,279.16
  5. Step 5: Solve for x
    x = 1,305,565,935,279.16/1,143,002.12
  6. Step 6: Final answer
    x = 1,142,225.30

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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.