Home / 862,199.46-1,189,727.43-499,616.70

Finding the Fourth Proportional to 862,199.46, 1,189,727.43 and 499,616.70

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Solution

The fourth proportional to 862,199.46, 1,189,727.43 and 499,616.70 is: 689,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,199.46 : 1,189,727.43 = 499,616.70 : x
  2. Step 2: Convert to fraction form
    862,199.46/1,189,727.43 = 499,616.70/x
  3. Step 3: Cross multiply
    862,199.46x = 1,189,727.43 × 499,616.70
  4. Step 4: Simplify right side
    862,199.46x = 594,407,692,476.08
  5. Step 5: Solve for x
    x = 594,407,692,476.08/862,199.46
  6. Step 6: Final answer
    x = 689,408.57

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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.