Home / 558,422.16-770,631.84-303,774.72

Finding the Fourth Proportional to 558,422.16, 770,631.84 and 303,774.72

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Solution

The fourth proportional to 558,422.16, 770,631.84 and 303,774.72 is: 419,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,422.16 : 770,631.84 = 303,774.72 : x
  2. Step 2: Convert to fraction form
    558,422.16/770,631.84 = 303,774.72/x
  3. Step 3: Cross multiply
    558,422.16x = 770,631.84 × 303,774.72
  4. Step 4: Simplify right side
    558,422.16x = 234,098,471,419.09
  5. Step 5: Solve for x
    x = 234,098,471,419.09/558,422.16
  6. Step 6: Final answer
    x = 419,214.15

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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.