Home / 3,111,648-4,294,078.08-1,680,864

Finding the Fourth Proportional to 3,111,648, 4,294,078.08 and 1,680,864

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Solution

The fourth proportional to 3,111,648, 4,294,078.08 and 1,680,864 is: 2,319,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,648 : 4,294,078.08 = 1,680,864 : x
  2. Step 2: Convert to fraction form
    3,111,648/4,294,078.08 = 1,680,864/x
  3. Step 3: Cross multiply
    3,111,648x = 4,294,078.08 × 1,680,864
  4. Step 4: Simplify right side
    3,111,648x = 7,217,761,257,861.12
  5. Step 5: Solve for x
    x = 7,217,761,257,861.12/3,111,648
  6. Step 6: Final answer
    x = 2,319,594.39

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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.