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Finding the Fourth Proportional to 575,572.40, 862,866.32 and 220,841

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Solution

The fourth proportional to 575,572.40, 862,866.32 and 220,841 is: 331,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,572.40 : 862,866.32 = 220,841 : x
  2. Step 2: Convert to fraction form
    575,572.40/862,866.32 = 220,841/x
  3. Step 3: Cross multiply
    575,572.40x = 862,866.32 × 220,841
  4. Step 4: Simplify right side
    575,572.40x = 190,556,260,975.12
  5. Step 5: Solve for x
    x = 190,556,260,975.12/575,572.40
  6. Step 6: Final answer
    x = 331,072.62

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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.