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Finding the Fourth Proportional to 558,521.44, 770,736.72 and 303,872.88

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Solution

The fourth proportional to 558,521.44, 770,736.72 and 303,872.88 is: 419,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,521.44 : 770,736.72 = 303,872.88 : x
  2. Step 2: Convert to fraction form
    558,521.44/770,736.72 = 303,872.88/x
  3. Step 3: Cross multiply
    558,521.44x = 770,736.72 × 303,872.88
  4. Step 4: Simplify right side
    558,521.44x = 234,205,986,828.15
  5. Step 5: Solve for x
    x = 234,205,986,828.15/558,521.44
  6. Step 6: Final answer
    x = 419,332.13

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1.5x scale

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.