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Finding the Fourth Proportional to 531,817.49, 733,912.82 and 290,101.16

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Solution

The fourth proportional to 531,817.49, 733,912.82 and 290,101.16 is: 400,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,817.49 : 733,912.82 = 290,101.16 : x
  2. Step 2: Convert to fraction form
    531,817.49/733,912.82 = 290,101.16/x
  3. Step 3: Cross multiply
    531,817.49x = 733,912.82 × 290,101.16
  4. Step 4: Simplify right side
    531,817.49x = 212,908,955,300.80
  5. Step 5: Solve for x
    x = 212,908,955,300.80/531,817.49
  6. Step 6: Final answer
    x = 400,342.15

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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.