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Finding the Fourth Proportional to 800,490.70, 1,104,685.88 and 437,906.76

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Solution

The fourth proportional to 800,490.70, 1,104,685.88 and 437,906.76 is: 604,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,490.70 : 1,104,685.88 = 437,906.76 : x
  2. Step 2: Convert to fraction form
    800,490.70/1,104,685.88 = 437,906.76/x
  3. Step 3: Cross multiply
    800,490.70x = 1,104,685.88 × 437,906.76
  4. Step 4: Simplify right side
    800,490.70x = 483,749,414,528.55
  5. Step 5: Solve for x
    x = 483,749,414,528.55/800,490.70
  6. Step 6: Final answer
    x = 604,316.10

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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.