Home / 1,392,347.64-2,088,523.08-381,478.36

Finding the Fourth Proportional to 1,392,347.64, 2,088,523.08 and 381,478.36

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Solution

The fourth proportional to 1,392,347.64, 2,088,523.08 and 381,478.36 is: 572,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,347.64 : 2,088,523.08 = 381,478.36 : x
  2. Step 2: Convert to fraction form
    1,392,347.64/2,088,523.08 = 381,478.36/x
  3. Step 3: Cross multiply
    1,392,347.64x = 2,088,523.08 × 381,478.36
  4. Step 4: Simplify right side
    1,392,347.64x = 796,726,359,380.55
  5. Step 5: Solve for x
    x = 796,726,359,380.55/1,392,347.64
  6. Step 6: Final answer
    x = 572,217.98

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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.