Home / 1,182,439.03-1,631,765.79-638,574.86

Finding the Fourth Proportional to 1,182,439.03, 1,631,765.79 and 638,574.86

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Solution

The fourth proportional to 1,182,439.03, 1,631,765.79 and 638,574.86 is: 881,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,439.03 : 1,631,765.79 = 638,574.86 : x
  2. Step 2: Convert to fraction form
    1,182,439.03/1,631,765.79 = 638,574.86/x
  3. Step 3: Cross multiply
    1,182,439.03x = 1,631,765.79 × 638,574.86
  4. Step 4: Simplify right side
    1,182,439.03x = 1,042,004,610,902.04
  5. Step 5: Solve for x
    x = 1,042,004,610,902.04/1,182,439.03
  6. Step 6: Final answer
    x = 881,233.27

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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.