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Finding the Fourth Proportional to 450,002.72, 621,004.31 and 246,054.56

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Solution

The fourth proportional to 450,002.72, 621,004.31 and 246,054.56 is: 339,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,002.72 : 621,004.31 = 246,054.56 : x
  2. Step 2: Convert to fraction form
    450,002.72/621,004.31 = 246,054.56/x
  3. Step 3: Cross multiply
    450,002.72x = 621,004.31 × 246,054.56
  4. Step 4: Simplify right side
    450,002.72x = 152,800,937,919.86
  5. Step 5: Solve for x
    x = 152,800,937,919.86/450,002.72
  6. Step 6: Final answer
    x = 339,555.59

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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.