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Finding the Fourth Proportional to 531,813.61, 733,907.47 and 290,097.26

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Solution

The fourth proportional to 531,813.61, 733,907.47 and 290,097.26 is: 400,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,813.61 : 733,907.47 = 290,097.26 : x
  2. Step 2: Convert to fraction form
    531,813.61/733,907.47 = 290,097.26/x
  3. Step 3: Cross multiply
    531,813.61x = 733,907.47 × 290,097.26
  4. Step 4: Simplify right side
    531,813.61x = 212,904,546,140.53
  5. Step 5: Solve for x
    x = 212,904,546,140.53/531,813.61
  6. Step 6: Final answer
    x = 400,336.78

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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.