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Finding the Fourth Proportional to 441,029.55, 608,739.75 and 288,064.50

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Solution

The fourth proportional to 441,029.55, 608,739.75 and 288,064.50 is: 397,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,029.55 : 608,739.75 = 288,064.50 : x
  2. Step 2: Convert to fraction form
    441,029.55/608,739.75 = 288,064.50/x
  3. Step 3: Cross multiply
    441,029.55x = 608,739.75 × 288,064.50
  4. Step 4: Simplify right side
    441,029.55x = 175,356,311,713.88
  5. Step 5: Solve for x
    x = 175,356,311,713.88/441,029.55
  6. Step 6: Final answer
    x = 397,606.72

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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.