Home / 1,578,989-2,179,001.04-890,658.56

Finding the Fourth Proportional to 1,578,989, 2,179,001.04 and 890,658.56

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Solution

The fourth proportional to 1,578,989, 2,179,001.04 and 890,658.56 is: 1,229,106.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,989 : 2,179,001.04 = 890,658.56 : x
  2. Step 2: Convert to fraction form
    1,578,989/2,179,001.04 = 890,658.56/x
  3. Step 3: Cross multiply
    1,578,989x = 2,179,001.04 × 890,658.56
  4. Step 4: Simplify right side
    1,578,989x = 1,940,745,928,524.90
  5. Step 5: Solve for x
    x = 1,940,745,928,524.90/1,578,989
  6. Step 6: Final answer
    x = 1,229,106.68

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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.