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Finding the Fourth Proportional to 740.39, 1,023.01 and 714.11

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Solution

The fourth proportional to 740.39, 1,023.01 and 714.11 is: 986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.39 : 1,023.01 = 714.11 : x
  2. Step 2: Convert to fraction form
    740.39/1,023.01 = 714.11/x
  3. Step 3: Cross multiply
    740.39x = 1,023.01 × 714.11
  4. Step 4: Simplify right side
    740.39x = 730,534.77
  5. Step 5: Solve for x
    x = 730,534.77/740.39
  6. Step 6: Final answer
    x = 986.70

Related Problems

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Double scale
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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.