Home / 1,290,074.54-1,935,185.61-391,545.59

Finding the Fourth Proportional to 1,290,074.54, 1,935,185.61 and 391,545.59

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Solution

The fourth proportional to 1,290,074.54, 1,935,185.61 and 391,545.59 is: 587,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,074.54 : 1,935,185.61 = 391,545.59 : x
  2. Step 2: Convert to fraction form
    1,290,074.54/1,935,185.61 = 391,545.59/x
  3. Step 3: Cross multiply
    1,290,074.54x = 1,935,185.61 × 391,545.59
  4. Step 4: Simplify right side
    1,290,074.54x = 757,713,381,751.03
  5. Step 5: Solve for x
    x = 757,713,381,751.03/1,290,074.54
  6. Step 6: Final answer
    x = 587,340.78

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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.