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Finding the Fourth Proportional to 520,710.22, 718,374.78 and 327,004

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Solution

The fourth proportional to 520,710.22, 718,374.78 and 327,004 is: 451,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,710.22 : 718,374.78 = 327,004 : x
  2. Step 2: Convert to fraction form
    520,710.22/718,374.78 = 327,004/x
  3. Step 3: Cross multiply
    520,710.22x = 718,374.78 × 327,004
  4. Step 4: Simplify right side
    520,710.22x = 234,911,426,559.12
  5. Step 5: Solve for x
    x = 234,911,426,559.12/520,710.22
  6. Step 6: Final answer
    x = 451,136.58

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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.