Home / 1,215,091.68-1,676,840.60-671,216.20

Finding the Fourth Proportional to 1,215,091.68, 1,676,840.60 and 671,216.20

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Solution

The fourth proportional to 1,215,091.68, 1,676,840.60 and 671,216.20 is: 926,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,091.68 : 1,676,840.60 = 671,216.20 : x
  2. Step 2: Convert to fraction form
    1,215,091.68/1,676,840.60 = 671,216.20/x
  3. Step 3: Cross multiply
    1,215,091.68x = 1,676,840.60 × 671,216.20
  4. Step 4: Simplify right side
    1,215,091.68x = 1,125,522,575,537.72
  5. Step 5: Solve for x
    x = 1,125,522,575,537.72/1,215,091.68
  6. Step 6: Final answer
    x = 926,286.13

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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.