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Finding the Fourth Proportional to 508,425.02, 700,279.66 and 378,948.56

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Solution

The fourth proportional to 508,425.02, 700,279.66 and 378,948.56 is: 521,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,425.02 : 700,279.66 = 378,948.56 : x
  2. Step 2: Convert to fraction form
    508,425.02/700,279.66 = 378,948.56/x
  3. Step 3: Cross multiply
    508,425.02x = 700,279.66 × 378,948.56
  4. Step 4: Simplify right side
    508,425.02x = 265,369,965,112.66
  5. Step 5: Solve for x
    x = 265,369,965,112.66/508,425.02
  6. Step 6: Final answer
    x = 521,945.13

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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.