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Finding the Fourth Proportional to 531,816.48, 733,911.42 and 290,100.12

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Solution

The fourth proportional to 531,816.48, 733,911.42 and 290,100.12 is: 400,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,816.48 : 733,911.42 = 290,100.12 : x
  2. Step 2: Convert to fraction form
    531,816.48/733,911.42 = 290,100.12/x
  3. Step 3: Cross multiply
    531,816.48x = 733,911.42 × 290,100.12
  4. Step 4: Simplify right side
    531,816.48x = 212,907,791,011.37
  5. Step 5: Solve for x
    x = 212,907,791,011.37/531,816.48
  6. Step 6: Final answer
    x = 400,340.72

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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.