Home / 716,868.15-989,270.22-394,571.31

Finding the Fourth Proportional to 716,868.15, 989,270.22 and 394,571.31

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Solution

The fourth proportional to 716,868.15, 989,270.22 and 394,571.31 is: 544,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,868.15 : 989,270.22 = 394,571.31 : x
  2. Step 2: Convert to fraction form
    716,868.15/989,270.22 = 394,571.31/x
  3. Step 3: Cross multiply
    716,868.15x = 989,270.22 × 394,571.31
  4. Step 4: Simplify right side
    716,868.15x = 390,337,646,649.39
  5. Step 5: Solve for x
    x = 390,337,646,649.39/716,868.15
  6. Step 6: Final answer
    x = 544,504.10

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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.