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Finding the Fourth Proportional to 478,609.02, 718,192.58 and 179,299.85

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Solution

The fourth proportional to 478,609.02, 718,192.58 and 179,299.85 is: 269,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,609.02 : 718,192.58 = 179,299.85 : x
  2. Step 2: Convert to fraction form
    478,609.02/718,192.58 = 179,299.85/x
  3. Step 3: Cross multiply
    478,609.02x = 718,192.58 × 179,299.85
  4. Step 4: Simplify right side
    478,609.02x = 128,771,817,377.65
  5. Step 5: Solve for x
    x = 128,771,817,377.65/478,609.02
  6. Step 6: Final answer
    x = 269,054.31

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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.