Home / 1,315,721.56-1,815,739.68-806,325.52

Finding the Fourth Proportional to 1,315,721.56, 1,815,739.68 and 806,325.52

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Solution

The fourth proportional to 1,315,721.56, 1,815,739.68 and 806,325.52 is: 1,112,756.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,721.56 : 1,815,739.68 = 806,325.52 : x
  2. Step 2: Convert to fraction form
    1,315,721.56/1,815,739.68 = 806,325.52/x
  3. Step 3: Cross multiply
    1,315,721.56x = 1,815,739.68 × 806,325.52
  4. Step 4: Simplify right side
    1,315,721.56x = 1,464,077,241,660.63
  5. Step 5: Solve for x
    x = 1,464,077,241,660.63/1,315,721.56
  6. Step 6: Final answer
    x = 1,112,756.14

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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.