Home / 528,739.11-729,648.33-299,291.82

Finding the Fourth Proportional to 528,739.11, 729,648.33 and 299,291.82

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Solution

The fourth proportional to 528,739.11, 729,648.33 and 299,291.82 is: 413,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,739.11 : 729,648.33 = 299,291.82 : x
  2. Step 2: Convert to fraction form
    528,739.11/729,648.33 = 299,291.82/x
  3. Step 3: Cross multiply
    528,739.11x = 729,648.33 × 299,291.82
  4. Step 4: Simplify right side
    528,739.11x = 218,377,776,645.66
  5. Step 5: Solve for x
    x = 218,377,776,645.66/528,739.11
  6. Step 6: Final answer
    x = 413,016.12

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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.