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Finding the Fourth Proportional to 890.68, 1,230.14 and 595.44

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Solution

The fourth proportional to 890.68, 1,230.14 and 595.44 is: 822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.68 : 1,230.14 = 595.44 : x
  2. Step 2: Convert to fraction form
    890.68/1,230.14 = 595.44/x
  3. Step 3: Cross multiply
    890.68x = 1,230.14 × 595.44
  4. Step 4: Simplify right side
    890.68x = 732,474.56
  5. Step 5: Solve for x
    x = 732,474.56/890.68
  6. Step 6: Final answer
    x = 822.38

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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.