Home / 871,406.20-1,307,110.38-272,370.43

Finding the Fourth Proportional to 871,406.20, 1,307,110.38 and 272,370.43

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Solution

The fourth proportional to 871,406.20, 1,307,110.38 and 272,370.43 is: 408,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,406.20 : 1,307,110.38 = 272,370.43 : x
  2. Step 2: Convert to fraction form
    871,406.20/1,307,110.38 = 272,370.43/x
  3. Step 3: Cross multiply
    871,406.20x = 1,307,110.38 × 272,370.43
  4. Step 4: Simplify right side
    871,406.20x = 356,018,216,258.06
  5. Step 5: Solve for x
    x = 356,018,216,258.06/871,406.20
  6. Step 6: Final answer
    x = 408,555.98

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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.