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Finding the Fourth Proportional to 479,457.61, 718,999.43 and 179,774.89

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Solution

The fourth proportional to 479,457.61, 718,999.43 and 179,774.89 is: 269,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,457.61 : 718,999.43 = 179,774.89 : x
  2. Step 2: Convert to fraction form
    479,457.61/718,999.43 = 179,774.89/x
  3. Step 3: Cross multiply
    479,457.61x = 718,999.43 × 179,774.89
  4. Step 4: Simplify right side
    479,457.61x = 129,258,040,741.94
  5. Step 5: Solve for x
    x = 129,258,040,741.94/479,457.61
  6. Step 6: Final answer
    x = 269,592.22

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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.