Home / 412,844.15-619,266.23-278,323.15

Finding the Fourth Proportional to 412,844.15, 619,266.23 and 278,323.15

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Solution

The fourth proportional to 412,844.15, 619,266.23 and 278,323.15 is: 417,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,844.15 : 619,266.23 = 278,323.15 : x
  2. Step 2: Convert to fraction form
    412,844.15/619,266.23 = 278,323.15/x
  3. Step 3: Cross multiply
    412,844.15x = 619,266.23 × 278,323.15
  4. Step 4: Simplify right side
    412,844.15x = 172,356,127,822.23
  5. Step 5: Solve for x
    x = 172,356,127,822.23/412,844.15
  6. Step 6: Final answer
    x = 417,484.73

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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.