Home / 487,110.38-672,191.20-266,343.64

Finding the Fourth Proportional to 487,110.38, 672,191.20 and 266,343.64

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Solution

The fourth proportional to 487,110.38, 672,191.20 and 266,343.64 is: 367,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,110.38 : 672,191.20 = 266,343.64 : x
  2. Step 2: Convert to fraction form
    487,110.38/672,191.20 = 266,343.64/x
  3. Step 3: Cross multiply
    487,110.38x = 672,191.20 × 266,343.64
  4. Step 4: Simplify right side
    487,110.38x = 179,033,850,983.97
  5. Step 5: Solve for x
    x = 179,033,850,983.97/487,110.38
  6. Step 6: Final answer
    x = 367,542.67

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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.