Home / 1,019,978.20-1,407,562.13-561,082.89

Finding the Fourth Proportional to 1,019,978.20, 1,407,562.13 and 561,082.89

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Solution

The fourth proportional to 1,019,978.20, 1,407,562.13 and 561,082.89 is: 774,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,978.20 : 1,407,562.13 = 561,082.89 : x
  2. Step 2: Convert to fraction form
    1,019,978.20/1,407,562.13 = 561,082.89/x
  3. Step 3: Cross multiply
    1,019,978.20x = 1,407,562.13 × 561,082.89
  4. Step 4: Simplify right side
    1,019,978.20x = 789,759,027,754.96
  5. Step 5: Solve for x
    x = 789,759,027,754.96/1,019,978.20
  6. Step 6: Final answer
    x = 774,290.11

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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.