Home / 1,378.49-2,066.45-597.99

Finding the Fourth Proportional to 1,378.49, 2,066.45 and 597.99

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Solution

The fourth proportional to 1,378.49, 2,066.45 and 597.99 is: 896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378.49 : 2,066.45 = 597.99 : x
  2. Step 2: Convert to fraction form
    1,378.49/2,066.45 = 597.99/x
  3. Step 3: Cross multiply
    1,378.49x = 2,066.45 × 597.99
  4. Step 4: Simplify right side
    1,378.49x = 1,235,713.45
  5. Step 5: Solve for x
    x = 1,235,713.45/1,378.49
  6. Step 6: Final answer
    x = 896.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.