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Finding the Fourth Proportional to 674,414.80, 929,611.50 and 456,554.77

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Solution

The fourth proportional to 674,414.80, 929,611.50 and 456,554.77 is: 629,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,414.80 : 929,611.50 = 456,554.77 : x
  2. Step 2: Convert to fraction form
    674,414.80/929,611.50 = 456,554.77/x
  3. Step 3: Cross multiply
    674,414.80x = 929,611.50 × 456,554.77
  4. Step 4: Simplify right side
    674,414.80x = 424,418,564,571.86
  5. Step 5: Solve for x
    x = 424,418,564,571.86/674,414.80
  6. Step 6: Final answer
    x = 629,313.84

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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.