Home / 839,405.16-1,258,835.58-278,289

Finding the Fourth Proportional to 839,405.16, 1,258,835.58 and 278,289

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Solution

The fourth proportional to 839,405.16, 1,258,835.58 and 278,289 is: 417,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,405.16 : 1,258,835.58 = 278,289 : x
  2. Step 2: Convert to fraction form
    839,405.16/1,258,835.58 = 278,289/x
  3. Step 3: Cross multiply
    839,405.16x = 1,258,835.58 × 278,289
  4. Step 4: Simplify right side
    839,405.16x = 350,320,094,722.62
  5. Step 5: Solve for x
    x = 350,320,094,722.62/839,405.16
  6. Step 6: Final answer
    x = 417,343.27

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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.