Home / 1,290,251.16-1,935,158.28-391,476.12

Finding the Fourth Proportional to 1,290,251.16, 1,935,158.28 and 391,476.12

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Solution

The fourth proportional to 1,290,251.16, 1,935,158.28 and 391,476.12 is: 587,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,251.16 : 1,935,158.28 = 391,476.12 : x
  2. Step 2: Convert to fraction form
    1,290,251.16/1,935,158.28 = 391,476.12/x
  3. Step 3: Cross multiply
    1,290,251.16x = 1,935,158.28 × 391,476.12
  4. Step 4: Simplify right side
    1,290,251.16x = 757,568,255,040.27
  5. Step 5: Solve for x
    x = 757,568,255,040.27/1,290,251.16
  6. Step 6: Final answer
    x = 587,147.90

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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.