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Finding the Fourth Proportional to 928,704.72, 1,393,678.44 and 337,728.72

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Solution

The fourth proportional to 928,704.72, 1,393,678.44 and 337,728.72 is: 506,819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,704.72 : 1,393,678.44 = 337,728.72 : x
  2. Step 2: Convert to fraction form
    928,704.72/1,393,678.44 = 337,728.72/x
  3. Step 3: Cross multiply
    928,704.72x = 1,393,678.44 × 337,728.72
  4. Step 4: Simplify right side
    928,704.72x = 470,685,235,632.80
  5. Step 5: Solve for x
    x = 470,685,235,632.80/928,704.72
  6. Step 6: Final answer
    x = 506,819.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.