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Finding the Fourth Proportional to 800,489.69, 1,104,684.50 and 437,905.77

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Solution

The fourth proportional to 800,489.69, 1,104,684.50 and 437,905.77 is: 604,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,489.69 : 1,104,684.50 = 437,905.77 : x
  2. Step 2: Convert to fraction form
    800,489.69/1,104,684.50 = 437,905.77/x
  3. Step 3: Cross multiply
    800,489.69x = 1,104,684.50 × 437,905.77
  4. Step 4: Simplify right side
    800,489.69x = 483,747,716,579.57
  5. Step 5: Solve for x
    x = 483,747,716,579.57/800,489.69
  6. Step 6: Final answer
    x = 604,314.74

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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.