Home / 686,072.15-1,029,014.82-180,590.81

Finding the Fourth Proportional to 686,072.15, 1,029,014.82 and 180,590.81

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Solution

The fourth proportional to 686,072.15, 1,029,014.82 and 180,590.81 is: 270,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,072.15 : 1,029,014.82 = 180,590.81 : x
  2. Step 2: Convert to fraction form
    686,072.15/1,029,014.82 = 180,590.81/x
  3. Step 3: Cross multiply
    686,072.15x = 1,029,014.82 × 180,590.81
  4. Step 4: Simplify right side
    686,072.15x = 185,830,619,845.80
  5. Step 5: Solve for x
    x = 185,830,619,845.80/686,072.15
  6. Step 6: Final answer
    x = 270,861.63

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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.