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Finding the Fourth Proportional to 531,996.96, 734,149.53 and 290,274.33

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Solution

The fourth proportional to 531,996.96, 734,149.53 and 290,274.33 is: 400,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,996.96 : 734,149.53 = 290,274.33 : x
  2. Step 2: Convert to fraction form
    531,996.96/734,149.53 = 290,274.33/x
  3. Step 3: Cross multiply
    531,996.96x = 734,149.53 × 290,274.33
  4. Step 4: Simplify right side
    531,996.96x = 213,104,762,940.57
  5. Step 5: Solve for x
    x = 213,104,762,940.57/531,996.96
  6. Step 6: Final answer
    x = 400,575.15

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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.