Home / 681,407.10-1,022,110.65-208,091.70

Finding the Fourth Proportional to 681,407.10, 1,022,110.65 and 208,091.70

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Solution

The fourth proportional to 681,407.10, 1,022,110.65 and 208,091.70 is: 312,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,407.10 : 1,022,110.65 = 208,091.70 : x
  2. Step 2: Convert to fraction form
    681,407.10/1,022,110.65 = 208,091.70/x
  3. Step 3: Cross multiply
    681,407.10x = 1,022,110.65 × 208,091.70
  4. Step 4: Simplify right side
    681,407.10x = 212,692,742,746.61
  5. Step 5: Solve for x
    x = 212,692,742,746.61/681,407.10
  6. Step 6: Final answer
    x = 312,137.55

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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.