Home / 1,315,718.96-1,815,691.88-742,759.11

Finding the Fourth Proportional to 1,315,718.96, 1,815,691.88 and 742,759.11

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Solution

The fourth proportional to 1,315,718.96, 1,815,691.88 and 742,759.11 is: 1,025,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,718.96 : 1,815,691.88 = 742,759.11 : x
  2. Step 2: Convert to fraction form
    1,315,718.96/1,815,691.88 = 742,759.11/x
  3. Step 3: Cross multiply
    1,315,718.96x = 1,815,691.88 × 742,759.11
  4. Step 4: Simplify right side
    1,315,718.96x = 1,348,621,681,109.23
  5. Step 5: Solve for x
    x = 1,348,621,681,109.23/1,315,718.96
  6. Step 6: Final answer
    x = 1,025,007.41

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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.