Home / 1,237,436.84-1,707,634.38-721,157.80

Finding the Fourth Proportional to 1,237,436.84, 1,707,634.38 and 721,157.80

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Solution

The fourth proportional to 1,237,436.84, 1,707,634.38 and 721,157.80 is: 995,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,436.84 : 1,707,634.38 = 721,157.80 : x
  2. Step 2: Convert to fraction form
    1,237,436.84/1,707,634.38 = 721,157.80/x
  3. Step 3: Cross multiply
    1,237,436.84x = 1,707,634.38 × 721,157.80
  4. Step 4: Simplify right side
    1,237,436.84x = 1,231,473,852,685.16
  5. Step 5: Solve for x
    x = 1,231,473,852,685.16/1,237,436.84
  6. Step 6: Final answer
    x = 995,181.18

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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.