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Finding the Fourth Proportional to 589,744.80, 884,422.80 and 215,719.20

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Solution

The fourth proportional to 589,744.80, 884,422.80 and 215,719.20 is: 323,507.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,744.80 : 884,422.80 = 215,719.20 : x
  2. Step 2: Convert to fraction form
    589,744.80/884,422.80 = 215,719.20/x
  3. Step 3: Cross multiply
    589,744.80x = 884,422.80 × 215,719.20
  4. Step 4: Simplify right side
    589,744.80x = 190,786,978,877.76
  5. Step 5: Solve for x
    x = 190,786,978,877.76/589,744.80
  6. Step 6: Final answer
    x = 323,507.69

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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.