Home / 810,856.77-1,216,096.52-305,468.40

Finding the Fourth Proportional to 810,856.77, 1,216,096.52 and 305,468.40

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Solution

The fourth proportional to 810,856.77, 1,216,096.52 and 305,468.40 is: 458,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,856.77 : 1,216,096.52 = 305,468.40 : x
  2. Step 2: Convert to fraction form
    810,856.77/1,216,096.52 = 305,468.40/x
  3. Step 3: Cross multiply
    810,856.77x = 1,216,096.52 × 305,468.40
  4. Step 4: Simplify right side
    810,856.77x = 371,479,058,209.97
  5. Step 5: Solve for x
    x = 371,479,058,209.97/810,856.77
  6. Step 6: Final answer
    x = 458,131.54

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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.