Home / 716,995.10-989,481.48-394,735.16

Finding the Fourth Proportional to 716,995.10, 989,481.48 and 394,735.16

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Solution

The fourth proportional to 716,995.10, 989,481.48 and 394,735.16 is: 544,750.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,995.10 : 989,481.48 = 394,735.16 : x
  2. Step 2: Convert to fraction form
    716,995.10/989,481.48 = 394,735.16/x
  3. Step 3: Cross multiply
    716,995.10x = 989,481.48 × 394,735.16
  4. Step 4: Simplify right side
    716,995.10x = 390,583,130,324.84
  5. Step 5: Solve for x
    x = 390,583,130,324.84/716,995.10
  6. Step 6: Final answer
    x = 544,750.07

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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.