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Finding the Fourth Proportional to 531,378.68, 797,240.34 and 318,113.37

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Solution

The fourth proportional to 531,378.68, 797,240.34 and 318,113.37 is: 477,273.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,378.68 : 797,240.34 = 318,113.37 : x
  2. Step 2: Convert to fraction form
    531,378.68/797,240.34 = 318,113.37/x
  3. Step 3: Cross multiply
    531,378.68x = 797,240.34 × 318,113.37
  4. Step 4: Simplify right side
    531,378.68x = 253,612,811,257.35
  5. Step 5: Solve for x
    x = 253,612,811,257.35/531,378.68
  6. Step 6: Final answer
    x = 477,273.22

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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.