Home / 671,637.20-1,006,872.60-405,114.80

Finding the Fourth Proportional to 671,637.20, 1,006,872.60 and 405,114.80

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Solution

The fourth proportional to 671,637.20, 1,006,872.60 and 405,114.80 is: 607,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,637.20 : 1,006,872.60 = 405,114.80 : x
  2. Step 2: Convert to fraction form
    671,637.20/1,006,872.60 = 405,114.80/x
  3. Step 3: Cross multiply
    671,637.20x = 1,006,872.60 × 405,114.80
  4. Step 4: Simplify right side
    671,637.20x = 407,898,991,974.48
  5. Step 5: Solve for x
    x = 407,898,991,974.48/671,637.20
  6. Step 6: Final answer
    x = 607,320.43

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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.