Home / 764,755.20-1,146,614.40-291,369.60

Finding the Fourth Proportional to 764,755.20, 1,146,614.40 and 291,369.60

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Solution

The fourth proportional to 764,755.20, 1,146,614.40 and 291,369.60 is: 436,856.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,755.20 : 1,146,614.40 = 291,369.60 : x
  2. Step 2: Convert to fraction form
    764,755.20/1,146,614.40 = 291,369.60/x
  3. Step 3: Cross multiply
    764,755.20x = 1,146,614.40 × 291,369.60
  4. Step 4: Simplify right side
    764,755.20x = 334,088,579,082.24
  5. Step 5: Solve for x
    x = 334,088,579,082.24/764,755.20
  6. Step 6: Final answer
    x = 436,856.89

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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.