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Finding the Fourth Proportional to 800,490.69, 1,104,685.88 and 437,906.77

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Solution

The fourth proportional to 800,490.69, 1,104,685.88 and 437,906.77 is: 604,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,490.69 : 1,104,685.88 = 437,906.77 : x
  2. Step 2: Convert to fraction form
    800,490.69/1,104,685.88 = 437,906.77/x
  3. Step 3: Cross multiply
    800,490.69x = 1,104,685.88 × 437,906.77
  4. Step 4: Simplify right side
    800,490.69x = 483,749,425,575.41
  5. Step 5: Solve for x
    x = 483,749,425,575.41/800,490.69
  6. Step 6: Final answer
    x = 604,316.12

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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.