Home / 754,121.71-1,040,694.75-409,958.32

Finding the Fourth Proportional to 754,121.71, 1,040,694.75 and 409,958.32

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Solution

The fourth proportional to 754,121.71, 1,040,694.75 and 409,958.32 is: 565,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,121.71 : 1,040,694.75 = 409,958.32 : x
  2. Step 2: Convert to fraction form
    754,121.71/1,040,694.75 = 409,958.32/x
  3. Step 3: Cross multiply
    754,121.71x = 1,040,694.75 × 409,958.32
  4. Step 4: Simplify right side
    754,121.71x = 426,641,471,342.82
  5. Step 5: Solve for x
    x = 426,641,471,342.82/754,121.71
  6. Step 6: Final answer
    x = 565,746.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.