Home / 393,346.28-589,856.76-123,384.38

Finding the Fourth Proportional to 393,346.28, 589,856.76 and 123,384.38

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Solution

The fourth proportional to 393,346.28, 589,856.76 and 123,384.38 is: 185,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,346.28 : 589,856.76 = 123,384.38 : x
  2. Step 2: Convert to fraction form
    393,346.28/589,856.76 = 123,384.38/x
  3. Step 3: Cross multiply
    393,346.28x = 589,856.76 × 123,384.38
  4. Step 4: Simplify right side
    393,346.28x = 72,779,107,672.13
  5. Step 5: Solve for x
    x = 72,779,107,672.13/393,346.28
  6. Step 6: Final answer
    x = 185,025.54

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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.