Home / 1,391,657.20-2,087,194.20-682,194.40

Finding the Fourth Proportional to 1,391,657.20, 2,087,194.20 and 682,194.40

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Solution

The fourth proportional to 1,391,657.20, 2,087,194.20 and 682,194.40 is: 1,023,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,657.20 : 2,087,194.20 = 682,194.40 : x
  2. Step 2: Convert to fraction form
    1,391,657.20/2,087,194.20 = 682,194.40/x
  3. Step 3: Cross multiply
    1,391,657.20x = 2,087,194.20 × 682,194.40
  4. Step 4: Simplify right side
    1,391,657.20x = 1,423,872,194,952.48
  5. Step 5: Solve for x
    x = 1,423,872,194,952.48/1,391,657.20
  6. Step 6: Final answer
    x = 1,023,148.66

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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.