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Finding the Fourth Proportional to 386,173.38, 579,477.60 and 301,696.78

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Solution

The fourth proportional to 386,173.38, 579,477.60 and 301,696.78 is: 452,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,173.38 : 579,477.60 = 301,696.78 : x
  2. Step 2: Convert to fraction form
    386,173.38/579,477.60 = 301,696.78/x
  3. Step 3: Cross multiply
    386,173.38x = 579,477.60 × 301,696.78
  4. Step 4: Simplify right side
    386,173.38x = 174,826,526,002.13
  5. Step 5: Solve for x
    x = 174,826,526,002.13/386,173.38
  6. Step 6: Final answer
    x = 452,715.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.