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Finding the Fourth Proportional to 575,574.28, 862,869.07 and 220,842.88

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Solution

The fourth proportional to 575,574.28, 862,869.07 and 220,842.88 is: 331,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,574.28 : 862,869.07 = 220,842.88 : x
  2. Step 2: Convert to fraction form
    575,574.28/862,869.07 = 220,842.88/x
  3. Step 3: Cross multiply
    575,574.28x = 862,869.07 × 220,842.88
  4. Step 4: Simplify right side
    575,574.28x = 190,558,490,481.72
  5. Step 5: Solve for x
    x = 190,558,490,481.72/575,574.28
  6. Step 6: Final answer
    x = 331,075.41

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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.