Home / 1,248,620.96-1,722,675.18-812,839.34

Finding the Fourth Proportional to 1,248,620.96, 1,722,675.18 and 812,839.34

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Solution

The fourth proportional to 1,248,620.96, 1,722,675.18 and 812,839.34 is: 1,121,443.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,620.96 : 1,722,675.18 = 812,839.34 : x
  2. Step 2: Convert to fraction form
    1,248,620.96/1,722,675.18 = 812,839.34/x
  3. Step 3: Cross multiply
    1,248,620.96x = 1,722,675.18 × 812,839.34
  4. Step 4: Simplify right side
    1,248,620.96x = 1,400,258,156,345.58
  5. Step 5: Solve for x
    x = 1,400,258,156,345.58/1,248,620.96
  6. Step 6: Final answer
    x = 1,121,443.74

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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.