Home / 1,251,792.60-1,727,346.78-768,378.12

Finding the Fourth Proportional to 1,251,792.60, 1,727,346.78 and 768,378.12

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Solution

The fourth proportional to 1,251,792.60, 1,727,346.78 and 768,378.12 is: 1,060,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,792.60 : 1,727,346.78 = 768,378.12 : x
  2. Step 2: Convert to fraction form
    1,251,792.60/1,727,346.78 = 768,378.12/x
  3. Step 3: Cross multiply
    1,251,792.60x = 1,727,346.78 × 768,378.12
  4. Step 4: Simplify right side
    1,251,792.60x = 1,327,255,471,404.45
  5. Step 5: Solve for x
    x = 1,327,255,471,404.45/1,251,792.60
  6. Step 6: Final answer
    x = 1,060,283.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.