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Finding the Fourth Proportional to 501,725.52, 692,258.94 and 283,939.20

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Solution

The fourth proportional to 501,725.52, 692,258.94 and 283,939.20 is: 391,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,725.52 : 692,258.94 = 283,939.20 : x
  2. Step 2: Convert to fraction form
    501,725.52/692,258.94 = 283,939.20/x
  3. Step 3: Cross multiply
    501,725.52x = 692,258.94 × 283,939.20
  4. Step 4: Simplify right side
    501,725.52x = 196,559,449,616.45
  5. Step 5: Solve for x
    x = 196,559,449,616.45/501,725.52
  6. Step 6: Final answer
    x = 391,766.90

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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.