Home / 865,817.30-1,296,101.55-654,115.70

Finding the Fourth Proportional to 865,817.30, 1,296,101.55 and 654,115.70

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Solution

The fourth proportional to 865,817.30, 1,296,101.55 and 654,115.70 is: 979,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,817.30 : 1,296,101.55 = 654,115.70 : x
  2. Step 2: Convert to fraction form
    865,817.30/1,296,101.55 = 654,115.70/x
  3. Step 3: Cross multiply
    865,817.30x = 1,296,101.55 × 654,115.70
  4. Step 4: Simplify right side
    865,817.30x = 847,800,372,649.34
  5. Step 5: Solve for x
    x = 847,800,372,649.34/865,817.30
  6. Step 6: Final answer
    x = 979,190.84

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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.