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Finding the Fourth Proportional to 832.01, 1,246.64 and 485.62

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Solution

The fourth proportional to 832.01, 1,246.64 and 485.62 is: 727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.01 : 1,246.64 = 485.62 : x
  2. Step 2: Convert to fraction form
    832.01/1,246.64 = 485.62/x
  3. Step 3: Cross multiply
    832.01x = 1,246.64 × 485.62
  4. Step 4: Simplify right side
    832.01x = 605,387.77
  5. Step 5: Solve for x
    x = 605,387.77/832.01
  6. Step 6: Final answer
    x = 727.63

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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.