Home / 1,836,121.20-2,754,181.80-772,364.40

Finding the Fourth Proportional to 1,836,121.20, 2,754,181.80 and 772,364.40

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Solution

The fourth proportional to 1,836,121.20, 2,754,181.80 and 772,364.40 is: 1,158,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,121.20 : 2,754,181.80 = 772,364.40 : x
  2. Step 2: Convert to fraction form
    1,836,121.20/2,754,181.80 = 772,364.40/x
  3. Step 3: Cross multiply
    1,836,121.20x = 2,754,181.80 × 772,364.40
  4. Step 4: Simplify right side
    1,836,121.20x = 2,127,231,973,447.92
  5. Step 5: Solve for x
    x = 2,127,231,973,447.92/1,836,121.20
  6. Step 6: Final answer
    x = 1,158,546.60

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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.