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Finding the Fourth Proportional to 610,601.67, 842,636.16 and 338,696.28

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Solution

The fourth proportional to 610,601.67, 842,636.16 and 338,696.28 is: 467,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,601.67 : 842,636.16 = 338,696.28 : x
  2. Step 2: Convert to fraction form
    610,601.67/842,636.16 = 338,696.28/x
  3. Step 3: Cross multiply
    610,601.67x = 842,636.16 × 338,696.28
  4. Step 4: Simplify right side
    610,601.67x = 285,397,732,785.49
  5. Step 5: Solve for x
    x = 285,397,732,785.49/610,601.67
  6. Step 6: Final answer
    x = 467,404.11

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1.5x scale

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.