Home / 1,050.17-1,449.29-630.55

Finding the Fourth Proportional to 1,050.17, 1,449.29 and 630.55

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Solution

The fourth proportional to 1,050.17, 1,449.29 and 630.55 is: 870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.17 : 1,449.29 = 630.55 : x
  2. Step 2: Convert to fraction form
    1,050.17/1,449.29 = 630.55/x
  3. Step 3: Cross multiply
    1,050.17x = 1,449.29 × 630.55
  4. Step 4: Simplify right side
    1,050.17x = 913,839.41
  5. Step 5: Solve for x
    x = 913,839.41/1,050.17
  6. Step 6: Final answer
    x = 870.18

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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.