Home / 1,478,971.92-2,040,992.64-867,140.40

Finding the Fourth Proportional to 1,478,971.92, 2,040,992.64 and 867,140.40

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Solution

The fourth proportional to 1,478,971.92, 2,040,992.64 and 867,140.40 is: 1,196,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,971.92 : 2,040,992.64 = 867,140.40 : x
  2. Step 2: Convert to fraction form
    1,478,971.92/2,040,992.64 = 867,140.40/x
  3. Step 3: Cross multiply
    1,478,971.92x = 2,040,992.64 × 867,140.40
  4. Step 4: Simplify right side
    1,478,971.92x = 1,769,827,174,246.66
  5. Step 5: Solve for x
    x = 1,769,827,174,246.66/1,478,971.92
  6. Step 6: Final answer
    x = 1,196,660.43

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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.