Home / 1,247,111.20-1,872,049.20-774,330.40

Finding the Fourth Proportional to 1,247,111.20, 1,872,049.20 and 774,330.40

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Solution

The fourth proportional to 1,247,111.20, 1,872,049.20 and 774,330.40 is: 1,162,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,111.20 : 1,872,049.20 = 774,330.40 : x
  2. Step 2: Convert to fraction form
    1,247,111.20/1,872,049.20 = 774,330.40/x
  3. Step 3: Cross multiply
    1,247,111.20x = 1,872,049.20 × 774,330.40
  4. Step 4: Simplify right side
    1,247,111.20x = 1,449,584,605,855.68
  5. Step 5: Solve for x
    x = 1,449,584,605,855.68/1,247,111.20
  6. Step 6: Final answer
    x = 1,162,353.93

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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.