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Finding the Fourth Proportional to 521,364.36, 719,497.98 and 295,005

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Solution

The fourth proportional to 521,364.36, 719,497.98 and 295,005 is: 407,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,364.36 : 719,497.98 = 295,005 : x
  2. Step 2: Convert to fraction form
    521,364.36/719,497.98 = 295,005/x
  3. Step 3: Cross multiply
    521,364.36x = 719,497.98 × 295,005
  4. Step 4: Simplify right side
    521,364.36x = 212,255,501,589.90
  5. Step 5: Solve for x
    x = 212,255,501,589.90/521,364.36
  6. Step 6: Final answer
    x = 407,115.48

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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.