Home / 1,961,122.20-2,942,728.20-763,083.60

Finding the Fourth Proportional to 1,961,122.20, 2,942,728.20 and 763,083.60

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Solution

The fourth proportional to 1,961,122.20, 2,942,728.20 and 763,083.60 is: 1,145,031.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,122.20 : 2,942,728.20 = 763,083.60 : x
  2. Step 2: Convert to fraction form
    1,961,122.20/2,942,728.20 = 763,083.60/x
  3. Step 3: Cross multiply
    1,961,122.20x = 2,942,728.20 × 763,083.60
  4. Step 4: Simplify right side
    1,961,122.20x = 2,245,547,628,677.52
  5. Step 5: Solve for x
    x = 2,245,547,628,677.52/1,961,122.20
  6. Step 6: Final answer
    x = 1,145,031.98

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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.