Home / 1,333,291.74-1,839,928.82-721,431.02

Finding the Fourth Proportional to 1,333,291.74, 1,839,928.82 and 721,431.02

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Solution

The fourth proportional to 1,333,291.74, 1,839,928.82 and 721,431.02 is: 995,567.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,291.74 : 1,839,928.82 = 721,431.02 : x
  2. Step 2: Convert to fraction form
    1,333,291.74/1,839,928.82 = 721,431.02/x
  3. Step 3: Cross multiply
    1,333,291.74x = 1,839,928.82 × 721,431.02
  4. Step 4: Simplify right side
    1,333,291.74x = 1,327,381,712,533.20
  5. Step 5: Solve for x
    x = 1,327,381,712,533.20/1,333,291.74
  6. Step 6: Final answer
    x = 995,567.34

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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.