Home / 1,230,235.80-1,845,353.70-911,371.20

Finding the Fourth Proportional to 1,230,235.80, 1,845,353.70 and 911,371.20

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Solution

The fourth proportional to 1,230,235.80, 1,845,353.70 and 911,371.20 is: 1,367,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,235.80 : 1,845,353.70 = 911,371.20 : x
  2. Step 2: Convert to fraction form
    1,230,235.80/1,845,353.70 = 911,371.20/x
  3. Step 3: Cross multiply
    1,230,235.80x = 1,845,353.70 × 911,371.20
  4. Step 4: Simplify right side
    1,230,235.80x = 1,681,802,215,993.44
  5. Step 5: Solve for x
    x = 1,681,802,215,993.44/1,230,235.80
  6. Step 6: Final answer
    x = 1,367,056.80

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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.