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Finding the Fourth Proportional to 494,901.20, 741,695.70 and 438,476.60

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Solution

The fourth proportional to 494,901.20, 741,695.70 and 438,476.60 is: 657,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,901.20 : 741,695.70 = 438,476.60 : x
  2. Step 2: Convert to fraction form
    494,901.20/741,695.70 = 438,476.60/x
  3. Step 3: Cross multiply
    494,901.20x = 741,695.70 × 438,476.60
  4. Step 4: Simplify right side
    494,901.20x = 325,216,208,770.62
  5. Step 5: Solve for x
    x = 325,216,208,770.62/494,901.20
  6. Step 6: Final answer
    x = 657,133.60

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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.