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Finding the Fourth Proportional to 972.84, 1,459.50 and 323.58

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Solution

The fourth proportional to 972.84, 1,459.50 and 323.58 is: 485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.84 : 1,459.50 = 323.58 : x
  2. Step 2: Convert to fraction form
    972.84/1,459.50 = 323.58/x
  3. Step 3: Cross multiply
    972.84x = 1,459.50 × 323.58
  4. Step 4: Simplify right side
    972.84x = 472,265.01
  5. Step 5: Solve for x
    x = 472,265.01/972.84
  6. Step 6: Final answer
    x = 485.45

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.