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Finding the Fourth Proportional to 895.49, 1,343.12 and 432.87

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Solution

The fourth proportional to 895.49, 1,343.12 and 432.87 is: 649.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.49 : 1,343.12 = 432.87 : x
  2. Step 2: Convert to fraction form
    895.49/1,343.12 = 432.87/x
  3. Step 3: Cross multiply
    895.49x = 1,343.12 × 432.87
  4. Step 4: Simplify right side
    895.49x = 581,396.35
  5. Step 5: Solve for x
    x = 581,396.35/895.49
  6. Step 6: Final answer
    x = 649.25

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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.