Home / 678,779.34-1,018,168.56-173,340.42

Finding the Fourth Proportional to 678,779.34, 1,018,168.56 and 173,340.42

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Solution

The fourth proportional to 678,779.34, 1,018,168.56 and 173,340.42 is: 260,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,779.34 : 1,018,168.56 = 173,340.42 : x
  2. Step 2: Convert to fraction form
    678,779.34/1,018,168.56 = 173,340.42/x
  3. Step 3: Cross multiply
    678,779.34x = 1,018,168.56 × 173,340.42
  4. Step 4: Simplify right side
    678,779.34x = 176,489,765,821.20
  5. Step 5: Solve for x
    x = 176,489,765,821.20/678,779.34
  6. Step 6: Final answer
    x = 260,010.52

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Similar ratio
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1.5x scale

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.