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Finding the Fourth Proportional to 531,660.40, 733,674.90 and 302,242.72

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Solution

The fourth proportional to 531,660.40, 733,674.90 and 302,242.72 is: 417,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,660.40 : 733,674.90 = 302,242.72 : x
  2. Step 2: Convert to fraction form
    531,660.40/733,674.90 = 302,242.72/x
  3. Step 3: Cross multiply
    531,660.40x = 733,674.90 × 302,242.72
  4. Step 4: Simplify right side
    531,660.40x = 221,747,897,371.73
  5. Step 5: Solve for x
    x = 221,747,897,371.73/531,660.40
  6. Step 6: Final answer
    x = 417,085.60

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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.