Home / 1,098,682.41-1,646,030.64-811,205.97

Finding the Fourth Proportional to 1,098,682.41, 1,646,030.64 and 811,205.97

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Solution

The fourth proportional to 1,098,682.41, 1,646,030.64 and 811,205.97 is: 1,215,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,682.41 : 1,646,030.64 = 811,205.97 : x
  2. Step 2: Convert to fraction form
    1,098,682.41/1,646,030.64 = 811,205.97/x
  3. Step 3: Cross multiply
    1,098,682.41x = 1,646,030.64 × 811,205.97
  4. Step 4: Simplify right side
    1,098,682.41x = 1,335,269,881,970.92
  5. Step 5: Solve for x
    x = 1,335,269,881,970.92/1,098,682.41
  6. Step 6: Final answer
    x = 1,215,337.45

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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.