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Finding the Fourth Proportional to 502,785.79, 693,858.05 and 273,358.51

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Solution

The fourth proportional to 502,785.79, 693,858.05 and 273,358.51 is: 377,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,785.79 : 693,858.05 = 273,358.51 : x
  2. Step 2: Convert to fraction form
    502,785.79/693,858.05 = 273,358.51/x
  3. Step 3: Cross multiply
    502,785.79x = 693,858.05 × 273,358.51
  4. Step 4: Simplify right side
    502,785.79x = 189,672,002,699.51
  5. Step 5: Solve for x
    x = 189,672,002,699.51/502,785.79
  6. Step 6: Final answer
    x = 377,242.17

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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.