Home / 400,919.41-553,059.03-247,908.70

Finding the Fourth Proportional to 400,919.41, 553,059.03 and 247,908.70

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Solution

The fourth proportional to 400,919.41, 553,059.03 and 247,908.70 is: 341,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,919.41 : 553,059.03 = 247,908.70 : x
  2. Step 2: Convert to fraction form
    400,919.41/553,059.03 = 247,908.70/x
  3. Step 3: Cross multiply
    400,919.41x = 553,059.03 × 247,908.70
  4. Step 4: Simplify right side
    400,919.41x = 137,108,145,150.56
  5. Step 5: Solve for x
    x = 137,108,145,150.56/400,919.41
  6. Step 6: Final answer
    x = 341,984.30

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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.