Home / 1,327,342.88-1,831,873.66-811,398.74

Finding the Fourth Proportional to 1,327,342.88, 1,831,873.66 and 811,398.74

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Solution

The fourth proportional to 1,327,342.88, 1,831,873.66 and 811,398.74 is: 1,119,816.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,342.88 : 1,831,873.66 = 811,398.74 : x
  2. Step 2: Convert to fraction form
    1,327,342.88/1,831,873.66 = 811,398.74/x
  3. Step 3: Cross multiply
    1,327,342.88x = 1,831,873.66 × 811,398.74
  4. Step 4: Simplify right side
    1,327,342.88x = 1,486,379,979,563.19
  5. Step 5: Solve for x
    x = 1,486,379,979,563.19/1,327,342.88
  6. Step 6: Final answer
    x = 1,119,816.14

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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.