Home / 672,040.30-1,008,060.45-618,385.90

Finding the Fourth Proportional to 672,040.30, 1,008,060.45 and 618,385.90

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Solution

The fourth proportional to 672,040.30, 1,008,060.45 and 618,385.90 is: 927,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,040.30 : 1,008,060.45 = 618,385.90 : x
  2. Step 2: Convert to fraction form
    672,040.30/1,008,060.45 = 618,385.90/x
  3. Step 3: Cross multiply
    672,040.30x = 1,008,060.45 × 618,385.90
  4. Step 4: Simplify right side
    672,040.30x = 623,370,368,627.66
  5. Step 5: Solve for x
    x = 623,370,368,627.66/672,040.30
  6. Step 6: Final answer
    x = 927,578.85

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Double scale
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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.