Home / 1,278,114.96-1,906,705.50-1,243,366.32

Finding the Fourth Proportional to 1,278,114.96, 1,906,705.50 and 1,243,366.32

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Solution

The fourth proportional to 1,278,114.96, 1,906,705.50 and 1,243,366.32 is: 1,854,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,114.96 : 1,906,705.50 = 1,243,366.32 : x
  2. Step 2: Convert to fraction form
    1,278,114.96/1,906,705.50 = 1,243,366.32/x
  3. Step 3: Cross multiply
    1,278,114.96x = 1,906,705.50 × 1,243,366.32
  4. Step 4: Simplify right side
    1,278,114.96x = 2,370,733,400,858.76
  5. Step 5: Solve for x
    x = 2,370,733,400,858.76/1,278,114.96
  6. Step 6: Final answer
    x = 1,854,867.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.