Home / 871,647.08-1,202,661.42-508,863.20

Finding the Fourth Proportional to 871,647.08, 1,202,661.42 and 508,863.20

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Solution

The fourth proportional to 871,647.08, 1,202,661.42 and 508,863.20 is: 702,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,647.08 : 1,202,661.42 = 508,863.20 : x
  2. Step 2: Convert to fraction form
    871,647.08/1,202,661.42 = 508,863.20/x
  3. Step 3: Cross multiply
    871,647.08x = 1,202,661.42 × 508,863.20
  4. Step 4: Simplify right side
    871,647.08x = 611,990,138,697.74
  5. Step 5: Solve for x
    x = 611,990,138,697.74/871,647.08
  6. Step 6: Final answer
    x = 702,107.71

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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.