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Finding the Fourth Proportional to 832.49, 1,148.84 and 459.45

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Solution

The fourth proportional to 832.49, 1,148.84 and 459.45 is: 634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.49 : 1,148.84 = 459.45 : x
  2. Step 2: Convert to fraction form
    832.49/1,148.84 = 459.45/x
  3. Step 3: Cross multiply
    832.49x = 1,148.84 × 459.45
  4. Step 4: Simplify right side
    832.49x = 527,832.24
  5. Step 5: Solve for x
    x = 527,832.24/832.49
  6. Step 6: Final answer
    x = 634.04

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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.