Home / 1,040.20-1,435.46-598.10

Finding the Fourth Proportional to 1,040.20, 1,435.46 and 598.10

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Solution

The fourth proportional to 1,040.20, 1,435.46 and 598.10 is: 825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.20 : 1,435.46 = 598.10 : x
  2. Step 2: Convert to fraction form
    1,040.20/1,435.46 = 598.10/x
  3. Step 3: Cross multiply
    1,040.20x = 1,435.46 × 598.10
  4. Step 4: Simplify right side
    1,040.20x = 858,549.90
  5. Step 5: Solve for x
    x = 858,549.90/1,040.20
  6. Step 6: Final answer
    x = 825.37

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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.