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Finding the Fourth Proportional to 613,721, 846,935.10 and 359,121.08

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Solution

The fourth proportional to 613,721, 846,935.10 and 359,121.08 is: 495,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,721 : 846,935.10 = 359,121.08 : x
  2. Step 2: Convert to fraction form
    613,721/846,935.10 = 359,121.08/x
  3. Step 3: Cross multiply
    613,721x = 846,935.10 × 359,121.08
  4. Step 4: Simplify right side
    613,721x = 304,152,247,801.91
  5. Step 5: Solve for x
    x = 304,152,247,801.91/613,721
  6. Step 6: Final answer
    x = 495,587.16

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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.