Home / 872,149.48-1,203,662.18-499,647.80

Finding the Fourth Proportional to 872,149.48, 1,203,662.18 and 499,647.80

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Solution

The fourth proportional to 872,149.48, 1,203,662.18 and 499,647.80 is: 689,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,149.48 : 1,203,662.18 = 499,647.80 : x
  2. Step 2: Convert to fraction form
    872,149.48/1,203,662.18 = 499,647.80/x
  3. Step 3: Cross multiply
    872,149.48x = 1,203,662.18 × 499,647.80
  4. Step 4: Simplify right side
    872,149.48x = 601,407,164,438.48
  5. Step 5: Solve for x
    x = 601,407,164,438.48/872,149.48
  6. Step 6: Final answer
    x = 689,568.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.