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Finding the Fourth Proportional to 832.69, 1,149.19 and 459.74

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Solution

The fourth proportional to 832.69, 1,149.19 and 459.74 is: 634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.69 : 1,149.19 = 459.74 : x
  2. Step 2: Convert to fraction form
    832.69/1,149.19 = 459.74/x
  3. Step 3: Cross multiply
    832.69x = 1,149.19 × 459.74
  4. Step 4: Simplify right side
    832.69x = 528,328.61
  5. Step 5: Solve for x
    x = 528,328.61/832.69
  6. Step 6: Final answer
    x = 634.48

Related Problems

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