Home / 2,106,378.60-2,906,796.14-1,139,508.68

Finding the Fourth Proportional to 2,106,378.60, 2,906,796.14 and 1,139,508.68

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Solution

The fourth proportional to 2,106,378.60, 2,906,796.14 and 1,139,508.68 is: 1,572,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,378.60 : 2,906,796.14 = 1,139,508.68 : x
  2. Step 2: Convert to fraction form
    2,106,378.60/2,906,796.14 = 1,139,508.68/x
  3. Step 3: Cross multiply
    2,106,378.60x = 2,906,796.14 × 1,139,508.68
  4. Step 4: Simplify right side
    2,106,378.60x = 3,312,319,432,520.50
  5. Step 5: Solve for x
    x = 3,312,319,432,520.50/2,106,378.60
  6. Step 6: Final answer
    x = 1,572,518.56

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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.