Home / 764,550.56-1,146,964.08-315,021.36

Finding the Fourth Proportional to 764,550.56, 1,146,964.08 and 315,021.36

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Solution

The fourth proportional to 764,550.56, 1,146,964.08 and 315,021.36 is: 472,589.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,550.56 : 1,146,964.08 = 315,021.36 : x
  2. Step 2: Convert to fraction form
    764,550.56/1,146,964.08 = 315,021.36/x
  3. Step 3: Cross multiply
    764,550.56x = 1,146,964.08 × 315,021.36
  4. Step 4: Simplify right side
    764,550.56x = 361,318,184,352.75
  5. Step 5: Solve for x
    x = 361,318,184,352.75/764,550.56
  6. Step 6: Final answer
    x = 472,589.00

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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.