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Finding the Fourth Proportional to 503,725.80, 755,587.86 and 345,474.48

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Solution

The fourth proportional to 503,725.80, 755,587.86 and 345,474.48 is: 518,211.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,725.80 : 755,587.86 = 345,474.48 : x
  2. Step 2: Convert to fraction form
    503,725.80/755,587.86 = 345,474.48/x
  3. Step 3: Cross multiply
    503,725.80x = 755,587.86 × 345,474.48
  4. Step 4: Simplify right side
    503,725.80x = 261,036,323,027.81
  5. Step 5: Solve for x
    x = 261,036,323,027.81/503,725.80
  6. Step 6: Final answer
    x = 518,211.14

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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.