Home / 739,249.12-1,108,993.29-289,726.21

Finding the Fourth Proportional to 739,249.12, 1,108,993.29 and 289,726.21

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Solution

The fourth proportional to 739,249.12, 1,108,993.29 and 289,726.21 is: 434,636.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,249.12 : 1,108,993.29 = 289,726.21 : x
  2. Step 2: Convert to fraction form
    739,249.12/1,108,993.29 = 289,726.21/x
  3. Step 3: Cross multiply
    739,249.12x = 1,108,993.29 × 289,726.21
  4. Step 4: Simplify right side
    739,249.12x = 321,304,422,827.13
  5. Step 5: Solve for x
    x = 321,304,422,827.13/739,249.12
  6. Step 6: Final answer
    x = 434,636.19

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Double scale
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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.