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Finding the Fourth Proportional to 630.98, 946.58 and 284.32

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Solution

The fourth proportional to 630.98, 946.58 and 284.32 is: 426.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.98 : 946.58 = 284.32 : x
  2. Step 2: Convert to fraction form
    630.98/946.58 = 284.32/x
  3. Step 3: Cross multiply
    630.98x = 946.58 × 284.32
  4. Step 4: Simplify right side
    630.98x = 269,125.47
  5. Step 5: Solve for x
    x = 269,125.47/630.98
  6. Step 6: Final answer
    x = 426.52

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