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Finding the Fourth Proportional to 723.93, 999.53 and 462.30

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Solution

The fourth proportional to 723.93, 999.53 and 462.30 is: 638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.93 : 999.53 = 462.30 : x
  2. Step 2: Convert to fraction form
    723.93/999.53 = 462.30/x
  3. Step 3: Cross multiply
    723.93x = 999.53 × 462.30
  4. Step 4: Simplify right side
    723.93x = 462,080.41
  5. Step 5: Solve for x
    x = 462,080.41/723.93
  6. Step 6: Final answer
    x = 638.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.