Home / 393,010.92-589,552.02-108,719.28

Finding the Fourth Proportional to 393,010.92, 589,552.02 and 108,719.28

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Solution

The fourth proportional to 393,010.92, 589,552.02 and 108,719.28 is: 163,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,010.92 : 589,552.02 = 108,719.28 : x
  2. Step 2: Convert to fraction form
    393,010.92/589,552.02 = 108,719.28/x
  3. Step 3: Cross multiply
    393,010.92x = 589,552.02 × 108,719.28
  4. Step 4: Simplify right side
    393,010.92x = 64,095,671,136.95
  5. Step 5: Solve for x
    x = 64,095,671,136.95/393,010.92
  6. Step 6: Final answer
    x = 163,088.78

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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.