Home / 716,850.25-989,253.60-394,558.04

Finding the Fourth Proportional to 716,850.25, 989,253.60 and 394,558.04

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Solution

The fourth proportional to 716,850.25, 989,253.60 and 394,558.04 is: 544,490.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,850.25 : 989,253.60 = 394,558.04 : x
  2. Step 2: Convert to fraction form
    716,850.25/989,253.60 = 394,558.04/x
  3. Step 3: Cross multiply
    716,850.25x = 989,253.60 × 394,558.04
  4. Step 4: Simplify right side
    716,850.25x = 390,317,961,478.94
  5. Step 5: Solve for x
    x = 390,317,961,478.94/716,850.25
  6. Step 6: Final answer
    x = 544,490.24

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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.