Home / 1,221,732.36-1,832,159.40-422,796.96

Finding the Fourth Proportional to 1,221,732.36, 1,832,159.40 and 422,796.96

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Solution

The fourth proportional to 1,221,732.36, 1,832,159.40 and 422,796.96 is: 634,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,732.36 : 1,832,159.40 = 422,796.96 : x
  2. Step 2: Convert to fraction form
    1,221,732.36/1,832,159.40 = 422,796.96/x
  3. Step 3: Cross multiply
    1,221,732.36x = 1,832,159.40 × 422,796.96
  4. Step 4: Simplify right side
    1,221,732.36x = 774,631,424,555.42
  5. Step 5: Solve for x
    x = 774,631,424,555.42/1,221,732.36
  6. Step 6: Final answer
    x = 634,043.47

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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.