Home / 1,019,979.20-1,407,563.51-561,083.89

Finding the Fourth Proportional to 1,019,979.20, 1,407,563.51 and 561,083.89

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Solution

The fourth proportional to 1,019,979.20, 1,407,563.51 and 561,083.89 is: 774,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,979.20 : 1,407,563.51 = 561,083.89 : x
  2. Step 2: Convert to fraction form
    1,019,979.20/1,407,563.51 = 561,083.89/x
  3. Step 3: Cross multiply
    1,019,979.20x = 1,407,563.51 × 561,083.89
  4. Step 4: Simplify right side
    1,019,979.20x = 789,761,209,612.85
  5. Step 5: Solve for x
    x = 789,761,209,612.85/1,019,979.20
  6. Step 6: Final answer
    x = 774,291.49

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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.