Home / 930,780.17-1,394,878.53-424,102.90

Finding the Fourth Proportional to 930,780.17, 1,394,878.53 and 424,102.90

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Solution

The fourth proportional to 930,780.17, 1,394,878.53 and 424,102.90 is: 635,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,780.17 : 1,394,878.53 = 424,102.90 : x
  2. Step 2: Convert to fraction form
    930,780.17/1,394,878.53 = 424,102.90/x
  3. Step 3: Cross multiply
    930,780.17x = 1,394,878.53 × 424,102.90
  4. Step 4: Simplify right side
    930,780.17x = 591,572,029,720.74
  5. Step 5: Solve for x
    x = 591,572,029,720.74/930,780.17
  6. Step 6: Final answer
    x = 635,565.79

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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.