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Finding the Fourth Proportional to 672,729.56, 928,363.02 and 370,923.80

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Solution

The fourth proportional to 672,729.56, 928,363.02 and 370,923.80 is: 511,872.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,729.56 : 928,363.02 = 370,923.80 : x
  2. Step 2: Convert to fraction form
    672,729.56/928,363.02 = 370,923.80/x
  3. Step 3: Cross multiply
    672,729.56x = 928,363.02 × 370,923.80
  4. Step 4: Simplify right side
    672,729.56x = 344,351,939,157.88
  5. Step 5: Solve for x
    x = 344,351,939,157.88/672,729.56
  6. Step 6: Final answer
    x = 511,872.76

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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.