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Finding the Fourth Proportional to 536,567.12, 739,722.76 and 428,039.81

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Solution

The fourth proportional to 536,567.12, 739,722.76 and 428,039.81 is: 590,104.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,567.12 : 739,722.76 = 428,039.81 : x
  2. Step 2: Convert to fraction form
    536,567.12/739,722.76 = 428,039.81/x
  3. Step 3: Cross multiply
    536,567.12x = 739,722.76 × 428,039.81
  4. Step 4: Simplify right side
    536,567.12x = 316,630,792,067.85
  5. Step 5: Solve for x
    x = 316,630,792,067.85/536,567.12
  6. Step 6: Final answer
    x = 590,104.72

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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.