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Finding the Fourth Proportional to 531,419.58, 733,334.85 and 289,702.62

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Solution

The fourth proportional to 531,419.58, 733,334.85 and 289,702.62 is: 399,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,419.58 : 733,334.85 = 289,702.62 : x
  2. Step 2: Convert to fraction form
    531,419.58/733,334.85 = 289,702.62/x
  3. Step 3: Cross multiply
    531,419.58x = 733,334.85 × 289,702.62
  4. Step 4: Simplify right side
    531,419.58x = 212,449,027,382.31
  5. Step 5: Solve for x
    x = 212,449,027,382.31/531,419.58
  6. Step 6: Final answer
    x = 399,776.44

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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.