Home / 920,900.52-1,381,286.61-344,413.98

Finding the Fourth Proportional to 920,900.52, 1,381,286.61 and 344,413.98

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Solution

The fourth proportional to 920,900.52, 1,381,286.61 and 344,413.98 is: 516,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,900.52 : 1,381,286.61 = 344,413.98 : x
  2. Step 2: Convert to fraction form
    920,900.52/1,381,286.61 = 344,413.98/x
  3. Step 3: Cross multiply
    920,900.52x = 1,381,286.61 × 344,413.98
  4. Step 4: Simplify right side
    920,900.52x = 475,734,418,870.81
  5. Step 5: Solve for x
    x = 475,734,418,870.81/920,900.52
  6. Step 6: Final answer
    x = 516,596.97

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1.5x scale

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.