Home / 1,338,755.60-2,009,688.60-806,877.20

Finding the Fourth Proportional to 1,338,755.60, 2,009,688.60 and 806,877.20

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Solution

The fourth proportional to 1,338,755.60, 2,009,688.60 and 806,877.20 is: 1,211,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,755.60 : 2,009,688.60 = 806,877.20 : x
  2. Step 2: Convert to fraction form
    1,338,755.60/2,009,688.60 = 806,877.20/x
  3. Step 3: Cross multiply
    1,338,755.60x = 2,009,688.60 × 806,877.20
  4. Step 4: Simplify right side
    1,338,755.60x = 1,621,571,910,439.92
  5. Step 5: Solve for x
    x = 1,621,571,910,439.92/1,338,755.60
  6. Step 6: Final answer
    x = 1,211,253.13

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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.