Home / 1,315,705.50-1,815,717.60-806,309.46

Finding the Fourth Proportional to 1,315,705.50, 1,815,717.60 and 806,309.46

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Solution

The fourth proportional to 1,315,705.50, 1,815,717.60 and 806,309.46 is: 1,112,734.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,705.50 : 1,815,717.60 = 806,309.46 : x
  2. Step 2: Convert to fraction form
    1,315,705.50/1,815,717.60 = 806,309.46/x
  3. Step 3: Cross multiply
    1,315,705.50x = 1,815,717.60 × 806,309.46
  4. Step 4: Simplify right side
    1,315,705.50x = 1,464,030,277,568.50
  5. Step 5: Solve for x
    x = 1,464,030,277,568.50/1,315,705.50
  6. Step 6: Final answer
    x = 1,112,734.03

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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.