Home / 1,315,592.20-1,815,517.20-711,980.20

Finding the Fourth Proportional to 1,315,592.20, 1,815,517.20 and 711,980.20

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Solution

The fourth proportional to 1,315,592.20, 1,815,517.20 and 711,980.20 is: 982,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,592.20 : 1,815,517.20 = 711,980.20 : x
  2. Step 2: Convert to fraction form
    1,315,592.20/1,815,517.20 = 711,980.20/x
  3. Step 3: Cross multiply
    1,315,592.20x = 1,815,517.20 × 711,980.20
  4. Step 4: Simplify right side
    1,315,592.20x = 1,292,612,299,159.44
  5. Step 5: Solve for x
    x = 1,292,612,299,159.44/1,315,592.20
  6. Step 6: Final answer
    x = 982,532.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.