Home / 4,702,878.72-6,489,285.12-2,768,002.56

Finding the Fourth Proportional to 4,702,878.72, 6,489,285.12 and 2,768,002.56

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Solution

The fourth proportional to 4,702,878.72, 6,489,285.12 and 2,768,002.56 is: 3,819,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702,878.72 : 6,489,285.12 = 2,768,002.56 : x
  2. Step 2: Convert to fraction form
    4,702,878.72/6,489,285.12 = 2,768,002.56/x
  3. Step 3: Cross multiply
    4,702,878.72x = 6,489,285.12 × 2,768,002.56
  4. Step 4: Simplify right side
    4,702,878.72x = 17,962,357,824,729.91
  5. Step 5: Solve for x
    x = 17,962,357,824,729.91/4,702,878.72
  6. Step 6: Final answer
    x = 3,819,438.88

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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.