Home / 1,691,661.80-2,536,860.32-680,442.04

Finding the Fourth Proportional to 1,691,661.80, 2,536,860.32 and 680,442.04

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Solution

The fourth proportional to 1,691,661.80, 2,536,860.32 and 680,442.04 is: 1,020,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,661.80 : 2,536,860.32 = 680,442.04 : x
  2. Step 2: Convert to fraction form
    1,691,661.80/2,536,860.32 = 680,442.04/x
  3. Step 3: Cross multiply
    1,691,661.80x = 2,536,860.32 × 680,442.04
  4. Step 4: Simplify right side
    1,691,661.80x = 1,726,186,411,335.85
  5. Step 5: Solve for x
    x = 1,726,186,411,335.85/1,691,661.80
  6. Step 6: Final answer
    x = 1,020,408.70

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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.