Home / 739,689.33-1,109,565.63-290,507.58

Finding the Fourth Proportional to 739,689.33, 1,109,565.63 and 290,507.58

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Solution

The fourth proportional to 739,689.33, 1,109,565.63 and 290,507.58 is: 435,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,689.33 : 1,109,565.63 = 290,507.58 : x
  2. Step 2: Convert to fraction form
    739,689.33/1,109,565.63 = 290,507.58/x
  3. Step 3: Cross multiply
    739,689.33x = 1,109,565.63 × 290,507.58
  4. Step 4: Simplify right side
    739,689.33x = 322,337,226,022.48
  5. Step 5: Solve for x
    x = 322,337,226,022.48/739,689.33
  6. Step 6: Final answer
    x = 435,773.79

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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.