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Finding the Fourth Proportional to 508,873.92, 702,373.68 and 294,138.72

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Solution

The fourth proportional to 508,873.92, 702,373.68 and 294,138.72 is: 405,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,873.92 : 702,373.68 = 294,138.72 : x
  2. Step 2: Convert to fraction form
    508,873.92/702,373.68 = 294,138.72/x
  3. Step 3: Cross multiply
    508,873.92x = 702,373.68 × 294,138.72
  4. Step 4: Simplify right side
    508,873.92x = 206,595,295,196.89
  5. Step 5: Solve for x
    x = 206,595,295,196.89/508,873.92
  6. Step 6: Final answer
    x = 405,985.23

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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.