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Finding the Fourth Proportional to 573,636.72, 791,623.80 and 311,994.37

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Solution

The fourth proportional to 573,636.72, 791,623.80 and 311,994.37 is: 430,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,636.72 : 791,623.80 = 311,994.37 : x
  2. Step 2: Convert to fraction form
    573,636.72/791,623.80 = 311,994.37/x
  3. Step 3: Cross multiply
    573,636.72x = 791,623.80 × 311,994.37
  4. Step 4: Simplify right side
    573,636.72x = 246,982,168,758.01
  5. Step 5: Solve for x
    x = 246,982,168,758.01/573,636.72
  6. Step 6: Final answer
    x = 430,555.02

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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.