Home / 764,548.56-1,146,961.08-315,019.35

Finding the Fourth Proportional to 764,548.56, 1,146,961.08 and 315,019.35

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Solution

The fourth proportional to 764,548.56, 1,146,961.08 and 315,019.35 is: 472,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,548.56 : 1,146,961.08 = 315,019.35 : x
  2. Step 2: Convert to fraction form
    764,548.56/1,146,961.08 = 315,019.35/x
  3. Step 3: Cross multiply
    764,548.56x = 1,146,961.08 × 315,019.35
  4. Step 4: Simplify right side
    764,548.56x = 361,314,933,896.90
  5. Step 5: Solve for x
    x = 361,314,933,896.90/764,548.56
  6. Step 6: Final answer
    x = 472,585.98

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Double scale
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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.