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Finding the Fourth Proportional to 531,468.90, 733,422.69 and 289,747.08

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Solution

The fourth proportional to 531,468.90, 733,422.69 and 289,747.08 is: 399,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,468.90 : 733,422.69 = 289,747.08 : x
  2. Step 2: Convert to fraction form
    531,468.90/733,422.69 = 289,747.08/x
  3. Step 3: Cross multiply
    531,468.90x = 733,422.69 × 289,747.08
  4. Step 4: Simplify right side
    531,468.90x = 212,507,082,833.25
  5. Step 5: Solve for x
    x = 212,507,082,833.25/531,468.90
  6. Step 6: Final answer
    x = 399,848.58

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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.