Home / 1,265,826.32-1,746,851.18-721,989.63

Finding the Fourth Proportional to 1,265,826.32, 1,746,851.18 and 721,989.63

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Solution

The fourth proportional to 1,265,826.32, 1,746,851.18 and 721,989.63 is: 996,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,826.32 : 1,746,851.18 = 721,989.63 : x
  2. Step 2: Convert to fraction form
    1,265,826.32/1,746,851.18 = 721,989.63/x
  3. Step 3: Cross multiply
    1,265,826.32x = 1,746,851.18 × 721,989.63
  4. Step 4: Simplify right side
    1,265,826.32x = 1,261,208,433,503.32
  5. Step 5: Solve for x
    x = 1,261,208,433,503.32/1,265,826.32
  6. Step 6: Final answer
    x = 996,351.88

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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.