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Finding the Fourth Proportional to 663,045.28, 994,861.95 and 347,427.16

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Solution

The fourth proportional to 663,045.28, 994,861.95 and 347,427.16 is: 521,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,045.28 : 994,861.95 = 347,427.16 : x
  2. Step 2: Convert to fraction form
    663,045.28/994,861.95 = 347,427.16/x
  3. Step 3: Cross multiply
    663,045.28x = 994,861.95 × 347,427.16
  4. Step 4: Simplify right side
    663,045.28x = 345,642,061,880.56
  5. Step 5: Solve for x
    x = 345,642,061,880.56/663,045.28
  6. Step 6: Final answer
    x = 521,294.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.