Home / 1,001,781.92-1,382,667.64-921,081.62

Finding the Fourth Proportional to 1,001,781.92, 1,382,667.64 and 921,081.62

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Solution

The fourth proportional to 1,001,781.92, 1,382,667.64 and 921,081.62 is: 1,271,284.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,781.92 : 1,382,667.64 = 921,081.62 : x
  2. Step 2: Convert to fraction form
    1,001,781.92/1,382,667.64 = 921,081.62/x
  3. Step 3: Cross multiply
    1,001,781.92x = 1,382,667.64 × 921,081.62
  4. Step 4: Simplify right side
    1,001,781.92x = 1,273,549,749,772.78
  5. Step 5: Solve for x
    x = 1,273,549,749,772.78/1,001,781.92
  6. Step 6: Final answer
    x = 1,271,284.42

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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.