Home / 839,657.88-1,259,683.65-278,692.38

Finding the Fourth Proportional to 839,657.88, 1,259,683.65 and 278,692.38

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Solution

The fourth proportional to 839,657.88, 1,259,683.65 and 278,692.38 is: 418,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,657.88 : 1,259,683.65 = 278,692.38 : x
  2. Step 2: Convert to fraction form
    839,657.88/1,259,683.65 = 278,692.38/x
  3. Step 3: Cross multiply
    839,657.88x = 1,259,683.65 × 278,692.38
  4. Step 4: Simplify right side
    839,657.88x = 351,064,234,465.59
  5. Step 5: Solve for x
    x = 351,064,234,465.59/839,657.88
  6. Step 6: Final answer
    x = 418,103.90

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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.