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Finding the Fourth Proportional to 710.80, 998 and 710.80

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Solution

The fourth proportional to 710.80, 998 and 710.80 is: 998.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.80 : 998 = 710.80 : x
  2. Step 2: Convert to fraction form
    710.80/998 = 710.80/x
  3. Step 3: Cross multiply
    710.80x = 998 × 710.80
  4. Step 4: Simplify right side
    710.80x = 709,378.40
  5. Step 5: Solve for x
    x = 709,378.40/710.80
  6. Step 6: Final answer
    x = 998.00

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.