Home / 589,388.24-813,142.32-385,555.28

Finding the Fourth Proportional to 589,388.24, 813,142.32 and 385,555.28

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Solution

The fourth proportional to 589,388.24, 813,142.32 and 385,555.28 is: 531,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,388.24 : 813,142.32 = 385,555.28 : x
  2. Step 2: Convert to fraction form
    589,388.24/813,142.32 = 385,555.28/x
  3. Step 3: Cross multiply
    589,388.24x = 813,142.32 × 385,555.28
  4. Step 4: Simplify right side
    589,388.24x = 313,511,314,867.45
  5. Step 5: Solve for x
    x = 313,511,314,867.45/589,388.24
  6. Step 6: Final answer
    x = 531,926.65

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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.