Home / 1,221,740.40-1,832,171.36-422,804.96

Finding the Fourth Proportional to 1,221,740.40, 1,832,171.36 and 422,804.96

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Solution

The fourth proportional to 1,221,740.40, 1,832,171.36 and 422,804.96 is: 634,055.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,740.40 : 1,832,171.36 = 422,804.96 : x
  2. Step 2: Convert to fraction form
    1,221,740.40/1,832,171.36 = 422,804.96/x
  3. Step 3: Cross multiply
    1,221,740.40x = 1,832,171.36 × 422,804.96
  4. Step 4: Simplify right side
    1,221,740.40x = 774,651,138,577.95
  5. Step 5: Solve for x
    x = 774,651,138,577.95/1,221,740.40
  6. Step 6: Final answer
    x = 634,055.43

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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.