Home / 886,403.20-1,329,615.60-287,359.60

Finding the Fourth Proportional to 886,403.20, 1,329,615.60 and 287,359.60

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Solution

The fourth proportional to 886,403.20, 1,329,615.60 and 287,359.60 is: 431,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,403.20 : 1,329,615.60 = 287,359.60 : x
  2. Step 2: Convert to fraction form
    886,403.20/1,329,615.60 = 287,359.60/x
  3. Step 3: Cross multiply
    886,403.20x = 1,329,615.60 × 287,359.60
  4. Step 4: Simplify right side
    886,403.20x = 382,077,806,969.76
  5. Step 5: Solve for x
    x = 382,077,806,969.76/886,403.20
  6. Step 6: Final answer
    x = 431,042.90

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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.