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Finding the Fourth Proportional to 531,930.65, 734,062.50 and 290,213.28

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Solution

The fourth proportional to 531,930.65, 734,062.50 and 290,213.28 is: 400,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,930.65 : 734,062.50 = 290,213.28 : x
  2. Step 2: Convert to fraction form
    531,930.65/734,062.50 = 290,213.28/x
  3. Step 3: Cross multiply
    531,930.65x = 734,062.50 × 290,213.28
  4. Step 4: Simplify right side
    531,930.65x = 213,034,685,850.00
  5. Step 5: Solve for x
    x = 213,034,685,850.00/531,930.65
  6. Step 6: Final answer
    x = 400,493.35

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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.