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Finding the Fourth Proportional to 975.61, 1,462.49 and 325.88

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Solution

The fourth proportional to 975.61, 1,462.49 and 325.88 is: 488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.61 : 1,462.49 = 325.88 : x
  2. Step 2: Convert to fraction form
    975.61/1,462.49 = 325.88/x
  3. Step 3: Cross multiply
    975.61x = 1,462.49 × 325.88
  4. Step 4: Simplify right side
    975.61x = 476,587.30
  5. Step 5: Solve for x
    x = 476,587.30/975.61
  6. Step 6: Final answer
    x = 488.50

Related Problems

Find fourth proportional to 487.80, 731.24 and 162.94
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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.