Home / 1,212,205.20-1,817,141.40-942,183.60

Finding the Fourth Proportional to 1,212,205.20, 1,817,141.40 and 942,183.60

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Solution

The fourth proportional to 1,212,205.20, 1,817,141.40 and 942,183.60 is: 1,412,368.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,205.20 : 1,817,141.40 = 942,183.60 : x
  2. Step 2: Convert to fraction form
    1,212,205.20/1,817,141.40 = 942,183.60/x
  3. Step 3: Cross multiply
    1,212,205.20x = 1,817,141.40 × 942,183.60
  4. Step 4: Simplify right side
    1,212,205.20x = 1,712,080,825,961.04
  5. Step 5: Solve for x
    x = 1,712,080,825,961.04/1,212,205.20
  6. Step 6: Final answer
    x = 1,412,368.82

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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.