Home / 818,070.39-1,227,161.68-278,106.98

Finding the Fourth Proportional to 818,070.39, 1,227,161.68 and 278,106.98

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Solution

The fourth proportional to 818,070.39, 1,227,161.68 and 278,106.98 is: 417,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,070.39 : 1,227,161.68 = 278,106.98 : x
  2. Step 2: Convert to fraction form
    818,070.39/1,227,161.68 = 278,106.98/x
  3. Step 3: Cross multiply
    818,070.39x = 1,227,161.68 × 278,106.98
  4. Step 4: Simplify right side
    818,070.39x = 341,282,221,965.45
  5. Step 5: Solve for x
    x = 341,282,221,965.45/818,070.39
  6. Step 6: Final answer
    x = 417,179.53

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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.