Home / 814,302.20-1,220,870.10-340,743.80

Finding the Fourth Proportional to 814,302.20, 1,220,870.10 and 340,743.80

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Solution

The fourth proportional to 814,302.20, 1,220,870.10 and 340,743.80 is: 510,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,302.20 : 1,220,870.10 = 340,743.80 : x
  2. Step 2: Convert to fraction form
    814,302.20/1,220,870.10 = 340,743.80/x
  3. Step 3: Cross multiply
    814,302.20x = 1,220,870.10 × 340,743.80
  4. Step 4: Simplify right side
    814,302.20x = 416,003,917,180.38
  5. Step 5: Solve for x
    x = 416,003,917,180.38/814,302.20
  6. Step 6: Final answer
    x = 510,871.66

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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.