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Finding the Fourth Proportional to 531,235.20, 733,096.80 and 289,523.20

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Solution

The fourth proportional to 531,235.20, 733,096.80 and 289,523.20 is: 399,537.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,235.20 : 733,096.80 = 289,523.20 : x
  2. Step 2: Convert to fraction form
    531,235.20/733,096.80 = 289,523.20/x
  3. Step 3: Cross multiply
    531,235.20x = 733,096.80 × 289,523.20
  4. Step 4: Simplify right side
    531,235.20x = 212,248,531,445.76
  5. Step 5: Solve for x
    x = 212,248,531,445.76/531,235.20
  6. Step 6: Final answer
    x = 399,537.78

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1.5x scale

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.