Home / 1,386,709.76-1,914,248.86-843,019.22

Finding the Fourth Proportional to 1,386,709.76, 1,914,248.86 and 843,019.22

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Solution

The fourth proportional to 1,386,709.76, 1,914,248.86 and 843,019.22 is: 1,163,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,709.76 : 1,914,248.86 = 843,019.22 : x
  2. Step 2: Convert to fraction form
    1,386,709.76/1,914,248.86 = 843,019.22/x
  3. Step 3: Cross multiply
    1,386,709.76x = 1,914,248.86 × 843,019.22
  4. Step 4: Simplify right side
    1,386,709.76x = 1,613,748,580,843.09
  5. Step 5: Solve for x
    x = 1,613,748,580,843.09/1,386,709.76
  6. Step 6: Final answer
    x = 1,163,724.83

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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.