Home / 379,579.29-569,175.26-126,768.69

Finding the Fourth Proportional to 379,579.29, 569,175.26 and 126,768.69

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Solution

The fourth proportional to 379,579.29, 569,175.26 and 126,768.69 is: 190,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,579.29 : 569,175.26 = 126,768.69 : x
  2. Step 2: Convert to fraction form
    379,579.29/569,175.26 = 126,768.69/x
  3. Step 3: Cross multiply
    379,579.29x = 569,175.26 × 126,768.69
  4. Step 4: Simplify right side
    379,579.29x = 72,153,601,456.77
  5. Step 5: Solve for x
    x = 72,153,601,456.77/379,579.29
  6. Step 6: Final answer
    x = 190,088.35

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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.