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Finding the Fourth Proportional to 558,660.88, 838,327.56 and 203,705.20

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Solution

The fourth proportional to 558,660.88, 838,327.56 and 203,705.20 is: 305,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,660.88 : 838,327.56 = 203,705.20 : x
  2. Step 2: Convert to fraction form
    558,660.88/838,327.56 = 203,705.20/x
  3. Step 3: Cross multiply
    558,660.88x = 838,327.56 × 203,705.20
  4. Step 4: Simplify right side
    558,660.88x = 170,771,683,275.31
  5. Step 5: Solve for x
    x = 170,771,683,275.31/558,660.88
  6. Step 6: Final answer
    x = 305,680.40

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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.