Home / 739,542.12-1,108,565.82-290,086.96

Finding the Fourth Proportional to 739,542.12, 1,108,565.82 and 290,086.96

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Solution

The fourth proportional to 739,542.12, 1,108,565.82 and 290,086.96 is: 434,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,542.12 : 1,108,565.82 = 290,086.96 : x
  2. Step 2: Convert to fraction form
    739,542.12/1,108,565.82 = 290,086.96/x
  3. Step 3: Cross multiply
    739,542.12x = 1,108,565.82 × 290,086.96
  4. Step 4: Simplify right side
    739,542.12x = 321,580,488,683.71
  5. Step 5: Solve for x
    x = 321,580,488,683.71/739,542.12
  6. Step 6: Final answer
    x = 434,837.29

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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.