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Finding the Fourth Proportional to 710.84, 1,060.12 and 694.28

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Solution

The fourth proportional to 710.84, 1,060.12 and 694.28 is: 1,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.84 : 1,060.12 = 694.28 : x
  2. Step 2: Convert to fraction form
    710.84/1,060.12 = 694.28/x
  3. Step 3: Cross multiply
    710.84x = 1,060.12 × 694.28
  4. Step 4: Simplify right side
    710.84x = 736,020.11
  5. Step 5: Solve for x
    x = 736,020.11/710.84
  6. Step 6: Final answer
    x = 1,035.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.