Home / 711,768.87-1,067,653.31-312,413.10

Finding the Fourth Proportional to 711,768.87, 1,067,653.31 and 312,413.10

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Solution

The fourth proportional to 711,768.87, 1,067,653.31 and 312,413.10 is: 468,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,768.87 : 1,067,653.31 = 312,413.10 : x
  2. Step 2: Convert to fraction form
    711,768.87/1,067,653.31 = 312,413.10/x
  3. Step 3: Cross multiply
    711,768.87x = 1,067,653.31 × 312,413.10
  4. Step 4: Simplify right side
    711,768.87x = 333,548,878,740.30
  5. Step 5: Solve for x
    x = 333,548,878,740.30/711,768.87
  6. Step 6: Final answer
    x = 468,619.65

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Double scale
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Similar ratio
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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.