Home / 1,306,023.90-1,802,689.83-789,778.50

Finding the Fourth Proportional to 1,306,023.90, 1,802,689.83 and 789,778.50

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Solution

The fourth proportional to 1,306,023.90, 1,802,689.83 and 789,778.50 is: 1,090,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,023.90 : 1,802,689.83 = 789,778.50 : x
  2. Step 2: Convert to fraction form
    1,306,023.90/1,802,689.83 = 789,778.50/x
  3. Step 3: Cross multiply
    1,306,023.90x = 1,802,689.83 × 789,778.50
  4. Step 4: Simplify right side
    1,306,023.90x = 1,423,725,669,902.66
  5. Step 5: Solve for x
    x = 1,423,725,669,902.66/1,306,023.90
  6. Step 6: Final answer
    x = 1,090,122.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.