Home / 672,742.24-928,372.38-366,821

Finding the Fourth Proportional to 672,742.24, 928,372.38 and 366,821

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Solution

The fourth proportional to 672,742.24, 928,372.38 and 366,821 is: 506,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,742.24 : 928,372.38 = 366,821 : x
  2. Step 2: Convert to fraction form
    672,742.24/928,372.38 = 366,821/x
  3. Step 3: Cross multiply
    672,742.24x = 928,372.38 × 366,821
  4. Step 4: Simplify right side
    672,742.24x = 340,546,484,803.98
  5. Step 5: Solve for x
    x = 340,546,484,803.98/672,742.24
  6. Step 6: Final answer
    x = 506,206.49

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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.