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Finding the Fourth Proportional to 531,813.74, 733,907.63 and 290,097.38

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Solution

The fourth proportional to 531,813.74, 733,907.63 and 290,097.38 is: 400,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,813.74 : 733,907.63 = 290,097.38 : x
  2. Step 2: Convert to fraction form
    531,813.74/733,907.63 = 290,097.38/x
  3. Step 3: Cross multiply
    531,813.74x = 733,907.63 × 290,097.38
  4. Step 4: Simplify right side
    531,813.74x = 212,904,683,185.02
  5. Step 5: Solve for x
    x = 212,904,683,185.02/531,813.74
  6. Step 6: Final answer
    x = 400,336.94

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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.