Home / 631,504.92-871,431.30-344,964.18

Finding the Fourth Proportional to 631,504.92, 871,431.30 and 344,964.18

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Solution

The fourth proportional to 631,504.92, 871,431.30 and 344,964.18 is: 476,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,504.92 : 871,431.30 = 344,964.18 : x
  2. Step 2: Convert to fraction form
    631,504.92/871,431.30 = 344,964.18/x
  3. Step 3: Cross multiply
    631,504.92x = 871,431.30 × 344,964.18
  4. Step 4: Simplify right side
    631,504.92x = 300,612,583,830.83
  5. Step 5: Solve for x
    x = 300,612,583,830.83/631,504.92
  6. Step 6: Final answer
    x = 476,025.72

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Double scale
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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.