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Finding the Fourth Proportional to 503,712.60, 754,912.80 and 203,947.80

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Solution

The fourth proportional to 503,712.60, 754,912.80 and 203,947.80 is: 305,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,712.60 : 754,912.80 = 203,947.80 : x
  2. Step 2: Convert to fraction form
    503,712.60/754,912.80 = 203,947.80/x
  3. Step 3: Cross multiply
    503,712.60x = 754,912.80 × 203,947.80
  4. Step 4: Simplify right side
    503,712.60x = 153,962,804,751.84
  5. Step 5: Solve for x
    x = 153,962,804,751.84/503,712.60
  6. Step 6: Final answer
    x = 305,656.05

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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.