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Finding the Fourth Proportional to 531,226.96, 733,071.80 and 289,504.34

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Solution

The fourth proportional to 531,226.96, 733,071.80 and 289,504.34 is: 399,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,226.96 : 733,071.80 = 289,504.34 : x
  2. Step 2: Convert to fraction form
    531,226.96/733,071.80 = 289,504.34/x
  3. Step 3: Cross multiply
    531,226.96x = 733,071.80 × 289,504.34
  4. Step 4: Simplify right side
    531,226.96x = 212,227,467,631.61
  5. Step 5: Solve for x
    x = 212,227,467,631.61/531,226.96
  6. Step 6: Final answer
    x = 399,504.32

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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.