Home / 1,220,590.76-1,831,476.62-747,017.78

Finding the Fourth Proportional to 1,220,590.76, 1,831,476.62 and 747,017.78

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Solution

The fourth proportional to 1,220,590.76, 1,831,476.62 and 747,017.78 is: 1,120,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,590.76 : 1,831,476.62 = 747,017.78 : x
  2. Step 2: Convert to fraction form
    1,220,590.76/1,831,476.62 = 747,017.78/x
  3. Step 3: Cross multiply
    1,220,590.76x = 1,831,476.62 × 747,017.78
  4. Step 4: Simplify right side
    1,220,590.76x = 1,368,145,591,504.47
  5. Step 5: Solve for x
    x = 1,368,145,591,504.47/1,220,590.76
  6. Step 6: Final answer
    x = 1,120,888.05

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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.