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Finding the Fourth Proportional to 740.41, 1,108.99 and 595.15

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Solution

The fourth proportional to 740.41, 1,108.99 and 595.15 is: 891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.41 : 1,108.99 = 595.15 : x
  2. Step 2: Convert to fraction form
    740.41/1,108.99 = 595.15/x
  3. Step 3: Cross multiply
    740.41x = 1,108.99 × 595.15
  4. Step 4: Simplify right side
    740.41x = 660,013.37
  5. Step 5: Solve for x
    x = 660,013.37/740.41
  6. Step 6: Final answer
    x = 891.42

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.