Home / 839,655.39-1,258,737.20-327,201.90

Finding the Fourth Proportional to 839,655.39, 1,258,737.20 and 327,201.90

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Solution

The fourth proportional to 839,655.39, 1,258,737.20 and 327,201.90 is: 490,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,655.39 : 1,258,737.20 = 327,201.90 : x
  2. Step 2: Convert to fraction form
    839,655.39/1,258,737.20 = 327,201.90/x
  3. Step 3: Cross multiply
    839,655.39x = 1,258,737.20 × 327,201.90
  4. Step 4: Simplify right side
    839,655.39x = 411,861,210,312.38
  5. Step 5: Solve for x
    x = 411,861,210,312.38/839,655.39
  6. Step 6: Final answer
    x = 490,512.20

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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.