Home / 1,691,734.32-2,538,592.92-680,698.80

Finding the Fourth Proportional to 1,691,734.32, 2,538,592.92 and 680,698.80

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Solution

The fourth proportional to 1,691,734.32, 2,538,592.92 and 680,698.80 is: 1,021,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,734.32 : 2,538,592.92 = 680,698.80 : x
  2. Step 2: Convert to fraction form
    1,691,734.32/2,538,592.92 = 680,698.80/x
  3. Step 3: Cross multiply
    1,691,734.32x = 2,538,592.92 × 680,698.80
  4. Step 4: Simplify right side
    1,691,734.32x = 1,728,017,154,332.50
  5. Step 5: Solve for x
    x = 1,728,017,154,332.50/1,691,734.32
  6. Step 6: Final answer
    x = 1,021,447.12

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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.