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Finding the Fourth Proportional to 531,728.94, 733,783.11 and 290,007.18

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Solution

The fourth proportional to 531,728.94, 733,783.11 and 290,007.18 is: 400,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,728.94 : 733,783.11 = 290,007.18 : x
  2. Step 2: Convert to fraction form
    531,728.94/733,783.11 = 290,007.18/x
  3. Step 3: Cross multiply
    531,728.94x = 733,783.11 × 290,007.18
  4. Step 4: Simplify right side
    531,728.94x = 212,802,370,462.73
  5. Step 5: Solve for x
    x = 212,802,370,462.73/531,728.94
  6. Step 6: Final answer
    x = 400,208.37

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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.