Home / 2,118,941.64-3,180,409.56-772,405.56

Finding the Fourth Proportional to 2,118,941.64, 3,180,409.56 and 772,405.56

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Solution

The fourth proportional to 2,118,941.64, 3,180,409.56 and 772,405.56 is: 1,159,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,941.64 : 3,180,409.56 = 772,405.56 : x
  2. Step 2: Convert to fraction form
    2,118,941.64/3,180,409.56 = 772,405.56/x
  3. Step 3: Cross multiply
    2,118,941.64x = 3,180,409.56 × 772,405.56
  4. Step 4: Simplify right side
    2,118,941.64x = 2,456,566,027,221.15
  5. Step 5: Solve for x
    x = 2,456,566,027,221.15/2,118,941.64
  6. Step 6: Final answer
    x = 1,159,336.33

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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.