Home / 638,443.68-881,058.24-351,973.92

Finding the Fourth Proportional to 638,443.68, 881,058.24 and 351,973.92

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Solution

The fourth proportional to 638,443.68, 881,058.24 and 351,973.92 is: 485,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,443.68 : 881,058.24 = 351,973.92 : x
  2. Step 2: Convert to fraction form
    638,443.68/881,058.24 = 351,973.92/x
  3. Step 3: Cross multiply
    638,443.68x = 881,058.24 × 351,973.92
  4. Step 4: Simplify right side
    638,443.68x = 310,109,522,481.10
  5. Step 5: Solve for x
    x = 310,109,522,481.10/638,443.68
  6. Step 6: Final answer
    x = 485,727.30

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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.