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Finding the Fourth Proportional to 895, 1,342.68 and 433.10

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Solution

The fourth proportional to 895, 1,342.68 and 433.10 is: 649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    895 : 1,342.68 = 433.10 : x
  2. Step 2: Convert to fraction form
    895/1,342.68 = 433.10/x
  3. Step 3: Cross multiply
    895x = 1,342.68 × 433.10
  4. Step 4: Simplify right side
    895x = 581,514.71
  5. Step 5: Solve for x
    x = 581,514.71/895
  6. Step 6: Final answer
    x = 649.74

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.