Home / 740.03-1,020.61-445.24

Finding the Fourth Proportional to 740.03, 1,020.61 and 445.24

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Solution

The fourth proportional to 740.03, 1,020.61 and 445.24 is: 614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.03 : 1,020.61 = 445.24 : x
  2. Step 2: Convert to fraction form
    740.03/1,020.61 = 445.24/x
  3. Step 3: Cross multiply
    740.03x = 1,020.61 × 445.24
  4. Step 4: Simplify right side
    740.03x = 454,414.17
  5. Step 5: Solve for x
    x = 454,414.17/740.03
  6. Step 6: Final answer
    x = 614.05

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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.