Home / 1,008,218.06-1,391,372.43-578,576.78

Finding the Fourth Proportional to 1,008,218.06, 1,391,372.43 and 578,576.78

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Solution

The fourth proportional to 1,008,218.06, 1,391,372.43 and 578,576.78 is: 798,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,218.06 : 1,391,372.43 = 578,576.78 : x
  2. Step 2: Convert to fraction form
    1,008,218.06/1,391,372.43 = 578,576.78/x
  3. Step 3: Cross multiply
    1,008,218.06x = 1,391,372.43 × 578,576.78
  4. Step 4: Simplify right side
    1,008,218.06x = 805,015,780,330.18
  5. Step 5: Solve for x
    x = 805,015,780,330.18/1,008,218.06
  6. Step 6: Final answer
    x = 798,454.04

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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.