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Finding the Fourth Proportional to 888,999.60, 1,334,082.60 and 509,919.60

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Solution

The fourth proportional to 888,999.60, 1,334,082.60 and 509,919.60 is: 765,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,999.60 : 1,334,082.60 = 509,919.60 : x
  2. Step 2: Convert to fraction form
    888,999.60/1,334,082.60 = 509,919.60/x
  3. Step 3: Cross multiply
    888,999.60x = 1,334,082.60 × 509,919.60
  4. Step 4: Simplify right side
    888,999.60x = 680,274,865,758.96
  5. Step 5: Solve for x
    x = 680,274,865,758.96/888,999.60
  6. Step 6: Final answer
    x = 765,213.92

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1.5x scale

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.