Home / 1,391,926.80-2,087,890.20-683,338.80

Finding the Fourth Proportional to 1,391,926.80, 2,087,890.20 and 683,338.80

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Solution

The fourth proportional to 1,391,926.80, 2,087,890.20 and 683,338.80 is: 1,025,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,926.80 : 2,087,890.20 = 683,338.80 : x
  2. Step 2: Convert to fraction form
    1,391,926.80/2,087,890.20 = 683,338.80/x
  3. Step 3: Cross multiply
    1,391,926.80x = 2,087,890.20 × 683,338.80
  4. Step 4: Simplify right side
    1,391,926.80x = 1,426,736,383,799.76
  5. Step 5: Solve for x
    x = 1,426,736,383,799.76/1,391,926.80
  6. Step 6: Final answer
    x = 1,025,008.20

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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.