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Finding the Fourth Proportional to 304,493.70, 456,707.70 and 79,876.64

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Solution

The fourth proportional to 304,493.70, 456,707.70 and 79,876.64 is: 119,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,493.70 : 456,707.70 = 79,876.64 : x
  2. Step 2: Convert to fraction form
    304,493.70/456,707.70 = 79,876.64/x
  3. Step 3: Cross multiply
    304,493.70x = 456,707.70 × 79,876.64
  4. Step 4: Simplify right side
    304,493.70x = 36,480,276,538.13
  5. Step 5: Solve for x
    x = 36,480,276,538.13/304,493.70
  6. Step 6: Final answer
    x = 119,806.34

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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.