Home / 868,243.20-1,302,364.80-658,291.20

Finding the Fourth Proportional to 868,243.20, 1,302,364.80 and 658,291.20

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Solution

The fourth proportional to 868,243.20, 1,302,364.80 and 658,291.20 is: 987,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,243.20 : 1,302,364.80 = 658,291.20 : x
  2. Step 2: Convert to fraction form
    868,243.20/1,302,364.80 = 658,291.20/x
  3. Step 3: Cross multiply
    868,243.20x = 1,302,364.80 × 658,291.20
  4. Step 4: Simplify right side
    868,243.20x = 857,335,287,029.76
  5. Step 5: Solve for x
    x = 857,335,287,029.76/868,243.20
  6. Step 6: Final answer
    x = 987,436.80

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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.