Home / 658,322.64-986,529.78-278,719.38

Finding the Fourth Proportional to 658,322.64, 986,529.78 and 278,719.38

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Solution

The fourth proportional to 658,322.64, 986,529.78 and 278,719.38 is: 417,675.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,322.64 : 986,529.78 = 278,719.38 : x
  2. Step 2: Convert to fraction form
    658,322.64/986,529.78 = 278,719.38/x
  3. Step 3: Cross multiply
    658,322.64x = 986,529.78 × 278,719.38
  4. Step 4: Simplify right side
    658,322.64x = 274,964,968,633.14
  5. Step 5: Solve for x
    x = 274,964,968,633.14/658,322.64
  6. Step 6: Final answer
    x = 417,675.09

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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.