Home / 1,226,131.34-1,692,295.40-811,938.06

Finding the Fourth Proportional to 1,226,131.34, 1,692,295.40 and 811,938.06

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Solution

The fourth proportional to 1,226,131.34, 1,692,295.40 and 811,938.06 is: 1,120,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,131.34 : 1,692,295.40 = 811,938.06 : x
  2. Step 2: Convert to fraction form
    1,226,131.34/1,692,295.40 = 811,938.06/x
  3. Step 3: Cross multiply
    1,226,131.34x = 1,692,295.40 × 811,938.06
  4. Step 4: Simplify right side
    1,226,131.34x = 1,374,039,044,022.92
  5. Step 5: Solve for x
    x = 1,374,039,044,022.92/1,226,131.34
  6. Step 6: Final answer
    x = 1,120,629.58

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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.