Home / 699,260.12-964,969.26-393,313.40

Finding the Fourth Proportional to 699,260.12, 964,969.26 and 393,313.40

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Solution

The fourth proportional to 699,260.12, 964,969.26 and 393,313.40 is: 542,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,260.12 : 964,969.26 = 393,313.40 : x
  2. Step 2: Convert to fraction form
    699,260.12/964,969.26 = 393,313.40/x
  3. Step 3: Cross multiply
    699,260.12x = 964,969.26 × 393,313.40
  4. Step 4: Simplify right side
    699,260.12x = 379,535,340,546.08
  5. Step 5: Solve for x
    x = 379,535,340,546.08/699,260.12
  6. Step 6: Final answer
    x = 542,767.03

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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.