Home / 1,115,117.88-1,538,870.04-605,820.12

Finding the Fourth Proportional to 1,115,117.88, 1,538,870.04 and 605,820.12

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Solution

The fourth proportional to 1,115,117.88, 1,538,870.04 and 605,820.12 is: 836,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,117.88 : 1,538,870.04 = 605,820.12 : x
  2. Step 2: Convert to fraction form
    1,115,117.88/1,538,870.04 = 605,820.12/x
  3. Step 3: Cross multiply
    1,115,117.88x = 1,538,870.04 × 605,820.12
  4. Step 4: Simplify right side
    1,115,117.88x = 932,278,432,297.21
  5. Step 5: Solve for x
    x = 932,278,432,297.21/1,115,117.88
  6. Step 6: Final answer
    x = 836,035.77

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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.