Home / 319,626.70-479,440.96-82,971.42

Finding the Fourth Proportional to 319,626.70, 479,440.96 and 82,971.42

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Solution

The fourth proportional to 319,626.70, 479,440.96 and 82,971.42 is: 124,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,626.70 : 479,440.96 = 82,971.42 : x
  2. Step 2: Convert to fraction form
    319,626.70/479,440.96 = 82,971.42/x
  3. Step 3: Cross multiply
    319,626.70x = 479,440.96 × 82,971.42
  4. Step 4: Simplify right side
    319,626.70x = 39,779,897,257.36
  5. Step 5: Solve for x
    x = 39,779,897,257.36/319,626.70
  6. Step 6: Final answer
    x = 124,457.37

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1.5x scale

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.