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Finding the Fourth Proportional to 570,995.61, 787,963.60 and 338,578.96

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Solution

The fourth proportional to 570,995.61, 787,963.60 and 338,578.96 is: 467,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,995.61 : 787,963.60 = 338,578.96 : x
  2. Step 2: Convert to fraction form
    570,995.61/787,963.60 = 338,578.96/x
  3. Step 3: Cross multiply
    570,995.61x = 787,963.60 × 338,578.96
  4. Step 4: Simplify right side
    570,995.61x = 266,787,890,573.14
  5. Step 5: Solve for x
    x = 266,787,890,573.14/570,995.61
  6. Step 6: Final answer
    x = 467,232.82

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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.