Home / 871,840.92-1,307,972.16-303,139.92

Finding the Fourth Proportional to 871,840.92, 1,307,972.16 and 303,139.92

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Solution

The fourth proportional to 871,840.92, 1,307,972.16 and 303,139.92 is: 454,783.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,840.92 : 1,307,972.16 = 303,139.92 : x
  2. Step 2: Convert to fraction form
    871,840.92/1,307,972.16 = 303,139.92/x
  3. Step 3: Cross multiply
    871,840.92x = 1,307,972.16 × 303,139.92
  4. Step 4: Simplify right side
    871,840.92x = 396,498,575,944.63
  5. Step 5: Solve for x
    x = 396,498,575,944.63/871,840.92
  6. Step 6: Final answer
    x = 454,783.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.