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Finding the Fourth Proportional to 953.68, 1,430.28 and 466.88

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Solution

The fourth proportional to 953.68, 1,430.28 and 466.88 is: 700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.68 : 1,430.28 = 466.88 : x
  2. Step 2: Convert to fraction form
    953.68/1,430.28 = 466.88/x
  3. Step 3: Cross multiply
    953.68x = 1,430.28 × 466.88
  4. Step 4: Simplify right side
    953.68x = 667,769.13
  5. Step 5: Solve for x
    x = 667,769.13/953.68
  6. Step 6: Final answer
    x = 700.20

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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.