Home / 739,471.81-1,109,330.29-259,575.13

Finding the Fourth Proportional to 739,471.81, 1,109,330.29 and 259,575.13

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Solution

The fourth proportional to 739,471.81, 1,109,330.29 and 259,575.13 is: 389,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,471.81 : 1,109,330.29 = 259,575.13 : x
  2. Step 2: Convert to fraction form
    739,471.81/1,109,330.29 = 259,575.13/x
  3. Step 3: Cross multiply
    739,471.81x = 1,109,330.29 × 259,575.13
  4. Step 4: Simplify right side
    739,471.81x = 287,954,554,490.71
  5. Step 5: Solve for x
    x = 287,954,554,490.71/739,471.81
  6. Step 6: Final answer
    x = 389,405.72

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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.