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Finding the Fourth Proportional to 464,285.39, 640,441.62 and 291,930.12

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Solution

The fourth proportional to 464,285.39, 640,441.62 and 291,930.12 is: 402,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,285.39 : 640,441.62 = 291,930.12 : x
  2. Step 2: Convert to fraction form
    464,285.39/640,441.62 = 291,930.12/x
  3. Step 3: Cross multiply
    464,285.39x = 640,441.62 × 291,930.12
  4. Step 4: Simplify right side
    464,285.39x = 186,964,198,979.59
  5. Step 5: Solve for x
    x = 186,964,198,979.59/464,285.39
  6. Step 6: Final answer
    x = 402,692.41

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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.