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Finding the Fourth Proportional to 531,171.39, 733,007.43 and 289,456.05

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Solution

The fourth proportional to 531,171.39, 733,007.43 and 289,456.05 is: 399,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,171.39 : 733,007.43 = 289,456.05 : x
  2. Step 2: Convert to fraction form
    531,171.39/733,007.43 = 289,456.05/x
  3. Step 3: Cross multiply
    531,171.39x = 733,007.43 × 289,456.05
  4. Step 4: Simplify right side
    531,171.39x = 212,173,435,308.45
  5. Step 5: Solve for x
    x = 212,173,435,308.45/531,171.39
  6. Step 6: Final answer
    x = 399,444.40

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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.