Home / 1,205,322-1,663,223.22-721,874.76

Finding the Fourth Proportional to 1,205,322, 1,663,223.22 and 721,874.76

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Solution

The fourth proportional to 1,205,322, 1,663,223.22 and 721,874.76 is: 996,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,322 : 1,663,223.22 = 721,874.76 : x
  2. Step 2: Convert to fraction form
    1,205,322/1,663,223.22 = 721,874.76/x
  3. Step 3: Cross multiply
    1,205,322x = 1,663,223.22 × 721,874.76
  4. Step 4: Simplify right side
    1,205,322x = 1,200,638,862,763.93
  5. Step 5: Solve for x
    x = 1,200,638,862,763.93/1,205,322
  6. Step 6: Final answer
    x = 996,114.62

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1.5x scale

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.