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Finding the Fourth Proportional to 710.94, 1,060.98 and 701.76

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Solution

The fourth proportional to 710.94, 1,060.98 and 701.76 is: 1,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.94 : 1,060.98 = 701.76 : x
  2. Step 2: Convert to fraction form
    710.94/1,060.98 = 701.76/x
  3. Step 3: Cross multiply
    710.94x = 1,060.98 × 701.76
  4. Step 4: Simplify right side
    710.94x = 744,553.32
  5. Step 5: Solve for x
    x = 744,553.32/710.94
  6. Step 6: Final answer
    x = 1,047.28

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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.