Home / 930,780.42-1,394,878.91-424,103.15

Finding the Fourth Proportional to 930,780.42, 1,394,878.91 and 424,103.15

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Solution

The fourth proportional to 930,780.42, 1,394,878.91 and 424,103.15 is: 635,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,780.42 : 1,394,878.91 = 424,103.15 : x
  2. Step 2: Convert to fraction form
    930,780.42/1,394,878.91 = 424,103.15/x
  3. Step 3: Cross multiply
    930,780.42x = 1,394,878.91 × 424,103.15
  4. Step 4: Simplify right side
    930,780.42x = 591,572,530,504.66
  5. Step 5: Solve for x
    x = 591,572,530,504.66/930,780.42
  6. Step 6: Final answer
    x = 635,566.15

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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.