Home / 689,225.76-1,033,449.84-268,019.28

Finding the Fourth Proportional to 689,225.76, 1,033,449.84 and 268,019.28

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Solution

The fourth proportional to 689,225.76, 1,033,449.84 and 268,019.28 is: 401,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,225.76 : 1,033,449.84 = 268,019.28 : x
  2. Step 2: Convert to fraction form
    689,225.76/1,033,449.84 = 268,019.28/x
  3. Step 3: Cross multiply
    689,225.76x = 1,033,449.84 × 268,019.28
  4. Step 4: Simplify right side
    689,225.76x = 276,984,482,032.92
  5. Step 5: Solve for x
    x = 276,984,482,032.92/689,225.76
  6. Step 6: Final answer
    x = 401,877.73

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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.