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Finding the Fourth Proportional to 713.18, 983.66 and 433.46

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Solution

The fourth proportional to 713.18, 983.66 and 433.46 is: 597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.18 : 983.66 = 433.46 : x
  2. Step 2: Convert to fraction form
    713.18/983.66 = 433.46/x
  3. Step 3: Cross multiply
    713.18x = 983.66 × 433.46
  4. Step 4: Simplify right side
    713.18x = 426,377.26
  5. Step 5: Solve for x
    x = 426,377.26/713.18
  6. Step 6: Final answer
    x = 597.85

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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.