Home / 987,649.42-1,481,592.82-347,820.91

Finding the Fourth Proportional to 987,649.42, 1,481,592.82 and 347,820.91

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Solution

The fourth proportional to 987,649.42, 1,481,592.82 and 347,820.91 is: 521,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,649.42 : 1,481,592.82 = 347,820.91 : x
  2. Step 2: Convert to fraction form
    987,649.42/1,481,592.82 = 347,820.91/x
  3. Step 3: Cross multiply
    987,649.42x = 1,481,592.82 × 347,820.91
  4. Step 4: Simplify right side
    987,649.42x = 515,328,962,901.87
  5. Step 5: Solve for x
    x = 515,328,962,901.87/987,649.42
  6. Step 6: Final answer
    x = 521,773.16

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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.