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Finding the Fourth Proportional to 575,687.70, 862,802.55 and 220,227.30

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Solution

The fourth proportional to 575,687.70, 862,802.55 and 220,227.30 is: 330,062.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,687.70 : 862,802.55 = 220,227.30 : x
  2. Step 2: Convert to fraction form
    575,687.70/862,802.55 = 220,227.30/x
  3. Step 3: Cross multiply
    575,687.70x = 862,802.55 × 220,227.30
  4. Step 4: Simplify right side
    575,687.70x = 190,012,676,019.62
  5. Step 5: Solve for x
    x = 190,012,676,019.62/575,687.70
  6. Step 6: Final answer
    x = 330,062.07

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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.