Home / 1,202,705.12-1,801,547.22-721,406.54

Finding the Fourth Proportional to 1,202,705.12, 1,801,547.22 and 721,406.54

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Solution

The fourth proportional to 1,202,705.12, 1,801,547.22 and 721,406.54 is: 1,080,603.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,705.12 : 1,801,547.22 = 721,406.54 : x
  2. Step 2: Convert to fraction form
    1,202,705.12/1,801,547.22 = 721,406.54/x
  3. Step 3: Cross multiply
    1,202,705.12x = 1,801,547.22 × 721,406.54
  4. Step 4: Simplify right side
    1,202,705.12x = 1,299,647,946,626.82
  5. Step 5: Solve for x
    x = 1,299,647,946,626.82/1,202,705.12
  6. Step 6: Final answer
    x = 1,080,603.99

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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.