Home / 690,704.82-1,036,167.95-291,404.41

Finding the Fourth Proportional to 690,704.82, 1,036,167.95 and 291,404.41

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Solution

The fourth proportional to 690,704.82, 1,036,167.95 and 291,404.41 is: 437,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,704.82 : 1,036,167.95 = 291,404.41 : x
  2. Step 2: Convert to fraction form
    690,704.82/1,036,167.95 = 291,404.41/x
  3. Step 3: Cross multiply
    690,704.82x = 1,036,167.95 × 291,404.41
  4. Step 4: Simplify right side
    690,704.82x = 301,943,910,130.66
  5. Step 5: Solve for x
    x = 301,943,910,130.66/690,704.82
  6. Step 6: Final answer
    x = 437,153.33

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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.