Home / 1,327,227.20-1,990,840.80-788,350.40

Finding the Fourth Proportional to 1,327,227.20, 1,990,840.80 and 788,350.40

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Solution

The fourth proportional to 1,327,227.20, 1,990,840.80 and 788,350.40 is: 1,182,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,227.20 : 1,990,840.80 = 788,350.40 : x
  2. Step 2: Convert to fraction form
    1,327,227.20/1,990,840.80 = 788,350.40/x
  3. Step 3: Cross multiply
    1,327,227.20x = 1,990,840.80 × 788,350.40
  4. Step 4: Simplify right side
    1,327,227.20x = 1,569,480,141,016.32
  5. Step 5: Solve for x
    x = 1,569,480,141,016.32/1,327,227.20
  6. Step 6: Final answer
    x = 1,182,525.60

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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.