Home / 879,939.60-1,318,872.60-458,998.80

Finding the Fourth Proportional to 879,939.60, 1,318,872.60 and 458,998.80

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Solution

The fourth proportional to 879,939.60, 1,318,872.60 and 458,998.80 is: 687,957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,939.60 : 1,318,872.60 = 458,998.80 : x
  2. Step 2: Convert to fraction form
    879,939.60/1,318,872.60 = 458,998.80/x
  3. Step 3: Cross multiply
    879,939.60x = 1,318,872.60 × 458,998.80
  4. Step 4: Simplify right side
    879,939.60x = 605,360,940,752.88
  5. Step 5: Solve for x
    x = 605,360,940,752.88/879,939.60
  6. Step 6: Final answer
    x = 687,957.38

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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.