Home / 800,621.49-1,104,676.88-478,268.76

Finding the Fourth Proportional to 800,621.49, 1,104,676.88 and 478,268.76

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Solution

The fourth proportional to 800,621.49, 1,104,676.88 and 478,268.76 is: 659,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,621.49 : 1,104,676.88 = 478,268.76 : x
  2. Step 2: Convert to fraction form
    800,621.49/1,104,676.88 = 478,268.76/x
  3. Step 3: Cross multiply
    800,621.49x = 1,104,676.88 × 478,268.76
  4. Step 4: Simplify right side
    800,621.49x = 528,332,439,206.93
  5. Step 5: Solve for x
    x = 528,332,439,206.93/800,621.49
  6. Step 6: Final answer
    x = 659,902.90

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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.