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Finding the Fourth Proportional to 531,195.79, 733,028.86 and 289,473.21

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Solution

The fourth proportional to 531,195.79, 733,028.86 and 289,473.21 is: 399,461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,195.79 : 733,028.86 = 289,473.21 : x
  2. Step 2: Convert to fraction form
    531,195.79/733,028.86 = 289,473.21/x
  3. Step 3: Cross multiply
    531,195.79x = 733,028.86 × 289,473.21
  4. Step 4: Simplify right side
    531,195.79x = 212,192,217,126.84
  5. Step 5: Solve for x
    x = 212,192,217,126.84/531,195.79
  6. Step 6: Final answer
    x = 399,461.41

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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.