Home / 487,629.81-672,634.89-322,058.79

Finding the Fourth Proportional to 487,629.81, 672,634.89 and 322,058.79

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Solution

The fourth proportional to 487,629.81, 672,634.89 and 322,058.79 is: 444,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,629.81 : 672,634.89 = 322,058.79 : x
  2. Step 2: Convert to fraction form
    487,629.81/672,634.89 = 322,058.79/x
  3. Step 3: Cross multiply
    487,629.81x = 672,634.89 × 322,058.79
  4. Step 4: Simplify right side
    487,629.81x = 216,627,978,785.18
  5. Step 5: Solve for x
    x = 216,627,978,785.18/487,629.81
  6. Step 6: Final answer
    x = 444,246.79

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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.