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Finding the Fourth Proportional to 558,838.94, 838,425.06 and 259,571.07

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Solution

The fourth proportional to 558,838.94, 838,425.06 and 259,571.07 is: 389,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,838.94 : 838,425.06 = 259,571.07 : x
  2. Step 2: Convert to fraction form
    558,838.94/838,425.06 = 259,571.07/x
  3. Step 3: Cross multiply
    558,838.94x = 838,425.06 × 259,571.07
  4. Step 4: Simplify right side
    558,838.94x = 217,630,889,939.01
  5. Step 5: Solve for x
    x = 217,630,889,939.01/558,838.94
  6. Step 6: Final answer
    x = 389,434.01

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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.