Home / 830,132.73-1,245,199.43-640,869.41

Finding the Fourth Proportional to 830,132.73, 1,245,199.43 and 640,869.41

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Solution

The fourth proportional to 830,132.73, 1,245,199.43 and 640,869.41 is: 961,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,132.73 : 1,245,199.43 = 640,869.41 : x
  2. Step 2: Convert to fraction form
    830,132.73/1,245,199.43 = 640,869.41/x
  3. Step 3: Cross multiply
    830,132.73x = 1,245,199.43 × 640,869.41
  4. Step 4: Simplify right side
    830,132.73x = 798,010,228,751.61
  5. Step 5: Solve for x
    x = 798,010,228,751.61/830,132.73
  6. Step 6: Final answer
    x = 961,304.38

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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.