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Finding the Fourth Proportional to 672,704, 928,338.78 and 366,777.89

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Solution

The fourth proportional to 672,704, 928,338.78 and 366,777.89 is: 506,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,704 : 928,338.78 = 366,777.89 : x
  2. Step 2: Convert to fraction form
    672,704/928,338.78 = 366,777.89/x
  3. Step 3: Cross multiply
    672,704x = 928,338.78 × 366,777.89
  4. Step 4: Simplify right side
    672,704x = 340,494,138,933.57
  5. Step 5: Solve for x
    x = 340,494,138,933.57/672,704
  6. Step 6: Final answer
    x = 506,157.45

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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.