Home / 1,021,129.20-1,531,693.80-273,175.20

Finding the Fourth Proportional to 1,021,129.20, 1,531,693.80 and 273,175.20

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Solution

The fourth proportional to 1,021,129.20, 1,531,693.80 and 273,175.20 is: 409,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,129.20 : 1,531,693.80 = 273,175.20 : x
  2. Step 2: Convert to fraction form
    1,021,129.20/1,531,693.80 = 273,175.20/x
  3. Step 3: Cross multiply
    1,021,129.20x = 1,531,693.80 × 273,175.20
  4. Step 4: Simplify right side
    1,021,129.20x = 418,420,760,153.76
  5. Step 5: Solve for x
    x = 418,420,760,153.76/1,021,129.20
  6. Step 6: Final answer
    x = 409,762.80

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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.