Home / 1,298,333.92-1,791,667.74-725,378.38

Finding the Fourth Proportional to 1,298,333.92, 1,791,667.74 and 725,378.38

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Solution

The fourth proportional to 1,298,333.92, 1,791,667.74 and 725,378.38 is: 1,001,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,333.92 : 1,791,667.74 = 725,378.38 : x
  2. Step 2: Convert to fraction form
    1,298,333.92/1,791,667.74 = 725,378.38/x
  3. Step 3: Cross multiply
    1,298,333.92x = 1,791,667.74 × 725,378.38
  4. Step 4: Simplify right side
    1,298,333.92x = 1,299,637,042,739.46
  5. Step 5: Solve for x
    x = 1,299,637,042,739.46/1,298,333.92
  6. Step 6: Final answer
    x = 1,001,003.69

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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.