Home / 543,436.26-815,153.85-356,404.02

Finding the Fourth Proportional to 543,436.26, 815,153.85 and 356,404.02

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Solution

The fourth proportional to 543,436.26, 815,153.85 and 356,404.02 is: 534,605.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,436.26 : 815,153.85 = 356,404.02 : x
  2. Step 2: Convert to fraction form
    543,436.26/815,153.85 = 356,404.02/x
  3. Step 3: Cross multiply
    543,436.26x = 815,153.85 × 356,404.02
  4. Step 4: Simplify right side
    543,436.26x = 290,524,109,058.48
  5. Step 5: Solve for x
    x = 290,524,109,058.48/543,436.26
  6. Step 6: Final answer
    x = 534,605.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.