Home / 420,532.20-580,343.94-239,236.92

Finding the Fourth Proportional to 420,532.20, 580,343.94 and 239,236.92

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Solution

The fourth proportional to 420,532.20, 580,343.94 and 239,236.92 is: 330,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,532.20 : 580,343.94 = 239,236.92 : x
  2. Step 2: Convert to fraction form
    420,532.20/580,343.94 = 239,236.92/x
  3. Step 3: Cross multiply
    420,532.20x = 580,343.94 × 239,236.92
  4. Step 4: Simplify right side
    420,532.20x = 138,839,696,746.27
  5. Step 5: Solve for x
    x = 138,839,696,746.27/420,532.20
  6. Step 6: Final answer
    x = 330,152.36

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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.