Home / 1,020,867-1,531,183.77-272,971.32

Finding the Fourth Proportional to 1,020,867, 1,531,183.77 and 272,971.32

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Solution

The fourth proportional to 1,020,867, 1,531,183.77 and 272,971.32 is: 409,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,867 : 1,531,183.77 = 272,971.32 : x
  2. Step 2: Convert to fraction form
    1,020,867/1,531,183.77 = 272,971.32/x
  3. Step 3: Cross multiply
    1,020,867x = 1,531,183.77 × 272,971.32
  4. Step 4: Simplify right side
    1,020,867x = 417,969,254,859.48
  5. Step 5: Solve for x
    x = 417,969,254,859.48/1,020,867
  6. Step 6: Final answer
    x = 409,425.77

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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.