Home / 1,209,815.20-1,814,722.80-929,879.20

Finding the Fourth Proportional to 1,209,815.20, 1,814,722.80 and 929,879.20

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Solution

The fourth proportional to 1,209,815.20, 1,814,722.80 and 929,879.20 is: 1,394,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,815.20 : 1,814,722.80 = 929,879.20 : x
  2. Step 2: Convert to fraction form
    1,209,815.20/1,814,722.80 = 929,879.20/x
  3. Step 3: Cross multiply
    1,209,815.20x = 1,814,722.80 × 929,879.20
  4. Step 4: Simplify right side
    1,209,815.20x = 1,687,472,985,485.76
  5. Step 5: Solve for x
    x = 1,687,472,985,485.76/1,209,815.20
  6. Step 6: Final answer
    x = 1,394,818.80

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Similar ratio
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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.