Home / 818,149.91-1,227,280.77-278,186.36

Finding the Fourth Proportional to 818,149.91, 1,227,280.77 and 278,186.36

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Solution

The fourth proportional to 818,149.91, 1,227,280.77 and 278,186.36 is: 417,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,149.91 : 1,227,280.77 = 278,186.36 : x
  2. Step 2: Convert to fraction form
    818,149.91/1,227,280.77 = 278,186.36/x
  3. Step 3: Cross multiply
    818,149.91x = 1,227,280.77 × 278,186.36
  4. Step 4: Simplify right side
    818,149.91x = 341,412,763,967.89
  5. Step 5: Solve for x
    x = 341,412,763,967.89/818,149.91
  6. Step 6: Final answer
    x = 417,298.54

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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.