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Finding the Fourth Proportional to 378,516.33, 566,070.26 and 336,642.57

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Solution

The fourth proportional to 378,516.33, 566,070.26 and 336,642.57 is: 503,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,516.33 : 566,070.26 = 336,642.57 : x
  2. Step 2: Convert to fraction form
    378,516.33/566,070.26 = 336,642.57/x
  3. Step 3: Cross multiply
    378,516.33x = 566,070.26 × 336,642.57
  4. Step 4: Simplify right side
    378,516.33x = 190,563,345,443.76
  5. Step 5: Solve for x
    x = 190,563,345,443.76/378,516.33
  6. Step 6: Final answer
    x = 503,448.15

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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.