Home / 1,097,701.20-1,643,326.20-818,456.40

Finding the Fourth Proportional to 1,097,701.20, 1,643,326.20 and 818,456.40

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Solution

The fourth proportional to 1,097,701.20, 1,643,326.20 and 818,456.40 is: 1,225,279.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,701.20 : 1,643,326.20 = 818,456.40 : x
  2. Step 2: Convert to fraction form
    1,097,701.20/1,643,326.20 = 818,456.40/x
  3. Step 3: Cross multiply
    1,097,701.20x = 1,643,326.20 × 818,456.40
  4. Step 4: Simplify right side
    1,097,701.20x = 1,344,990,845,677.68
  5. Step 5: Solve for x
    x = 1,344,990,845,677.68/1,097,701.20
  6. Step 6: Final answer
    x = 1,225,279.56

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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.