Home / 487,617.81-672,618.33-322,046.79

Finding the Fourth Proportional to 487,617.81, 672,618.33 and 322,046.79

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Solution

The fourth proportional to 487,617.81, 672,618.33 and 322,046.79 is: 444,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,617.81 : 672,618.33 = 322,046.79 : x
  2. Step 2: Convert to fraction form
    487,617.81/672,618.33 = 322,046.79/x
  3. Step 3: Cross multiply
    487,617.81x = 672,618.33 × 322,046.79
  4. Step 4: Simplify right side
    487,617.81x = 216,614,571,549.34
  5. Step 5: Solve for x
    x = 216,614,571,549.34/487,617.81
  6. Step 6: Final answer
    x = 444,230.23

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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.