Home / 379,619.47-569,314.17-199,607.89

Finding the Fourth Proportional to 379,619.47, 569,314.17 and 199,607.89

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Solution

The fourth proportional to 379,619.47, 569,314.17 and 199,607.89 is: 299,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,619.47 : 569,314.17 = 199,607.89 : x
  2. Step 2: Convert to fraction form
    379,619.47/569,314.17 = 199,607.89/x
  3. Step 3: Cross multiply
    379,619.47x = 569,314.17 × 199,607.89
  4. Step 4: Simplify right side
    379,619.47x = 113,639,600,220.80
  5. Step 5: Solve for x
    x = 113,639,600,220.80/379,619.47
  6. Step 6: Final answer
    x = 299,351.35

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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.