Home / 678,819.29-1,018,228.02-173,380.80

Finding the Fourth Proportional to 678,819.29, 1,018,228.02 and 173,380.80

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Solution

The fourth proportional to 678,819.29, 1,018,228.02 and 173,380.80 is: 260,070.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,819.29 : 1,018,228.02 = 173,380.80 : x
  2. Step 2: Convert to fraction form
    678,819.29/1,018,228.02 = 173,380.80/x
  3. Step 3: Cross multiply
    678,819.29x = 1,018,228.02 × 173,380.80
  4. Step 4: Simplify right side
    678,819.29x = 176,541,191,858.19
  5. Step 5: Solve for x
    x = 176,541,191,858.19/678,819.29
  6. Step 6: Final answer
    x = 260,070.97

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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.