Home / 748,990.31-1,033,610.28-409,458.56

Finding the Fourth Proportional to 748,990.31, 1,033,610.28 and 409,458.56

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Solution

The fourth proportional to 748,990.31, 1,033,610.28 and 409,458.56 is: 565,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,990.31 : 1,033,610.28 = 409,458.56 : x
  2. Step 2: Convert to fraction form
    748,990.31/1,033,610.28 = 409,458.56/x
  3. Step 3: Cross multiply
    748,990.31x = 1,033,610.28 × 409,458.56
  4. Step 4: Simplify right side
    748,990.31x = 423,220,576,850.00
  5. Step 5: Solve for x
    x = 423,220,576,850.00/748,990.31
  6. Step 6: Final answer
    x = 565,054.81

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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.