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Finding the Fourth Proportional to 713.39, 983.70 and 563.76

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Solution

The fourth proportional to 713.39, 983.70 and 563.76 is: 777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.39 : 983.70 = 563.76 : x
  2. Step 2: Convert to fraction form
    713.39/983.70 = 563.76/x
  3. Step 3: Cross multiply
    713.39x = 983.70 × 563.76
  4. Step 4: Simplify right side
    713.39x = 554,570.71
  5. Step 5: Solve for x
    x = 554,570.71/713.39
  6. Step 6: Final answer
    x = 777.38

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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.