Home / 716,883.48-989,261.55-394,531.97

Finding the Fourth Proportional to 716,883.48, 989,261.55 and 394,531.97

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Solution

The fourth proportional to 716,883.48, 989,261.55 and 394,531.97 is: 544,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,883.48 : 989,261.55 = 394,531.97 : x
  2. Step 2: Convert to fraction form
    716,883.48/989,261.55 = 394,531.97/x
  3. Step 3: Cross multiply
    716,883.48x = 989,261.55 × 394,531.97
  4. Step 4: Simplify right side
    716,883.48x = 390,295,303,220.45
  5. Step 5: Solve for x
    x = 390,295,303,220.45/716,883.48
  6. Step 6: Final answer
    x = 544,433.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.