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Finding the Fourth Proportional to 523,052.44, 721,887.80 and 290,532.42

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Solution

The fourth proportional to 523,052.44, 721,887.80 and 290,532.42 is: 400,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,052.44 : 721,887.80 = 290,532.42 : x
  2. Step 2: Convert to fraction form
    523,052.44/721,887.80 = 290,532.42/x
  3. Step 3: Cross multiply
    523,052.44x = 721,887.80 × 290,532.42
  4. Step 4: Simplify right side
    523,052.44x = 209,731,808,049.81
  5. Step 5: Solve for x
    x = 209,731,808,049.81/523,052.44
  6. Step 6: Final answer
    x = 400,976.64

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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.