Home / 3,111,210.75-4,293,473.72-1,680,426.75

Finding the Fourth Proportional to 3,111,210.75, 4,293,473.72 and 1,680,426.75

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Solution

The fourth proportional to 3,111,210.75, 4,293,473.72 and 1,680,426.75 is: 2,318,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,210.75 : 4,293,473.72 = 1,680,426.75 : x
  2. Step 2: Convert to fraction form
    3,111,210.75/4,293,473.72 = 1,680,426.75/x
  3. Step 3: Cross multiply
    3,111,210.75x = 4,293,473.72 × 1,680,426.75
  4. Step 4: Simplify right side
    3,111,210.75x = 7,214,868,081,107.88
  5. Step 5: Solve for x
    x = 7,214,868,081,107.88/3,111,210.75
  6. Step 6: Final answer
    x = 2,318,990.47

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.