Home / 528,910.90-729,794.38-314,118.34

Finding the Fourth Proportional to 528,910.90, 729,794.38 and 314,118.34

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Solution

The fourth proportional to 528,910.90, 729,794.38 and 314,118.34 is: 433,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,910.90 : 729,794.38 = 314,118.34 : x
  2. Step 2: Convert to fraction form
    528,910.90/729,794.38 = 314,118.34/x
  3. Step 3: Cross multiply
    528,910.90x = 729,794.38 × 314,118.34
  4. Step 4: Simplify right side
    528,910.90x = 229,241,799,186.93
  5. Step 5: Solve for x
    x = 229,241,799,186.93/528,910.90
  6. Step 6: Final answer
    x = 433,422.34

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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.