Home / 1,215,142.13-1,676,872.01-671,272.82

Finding the Fourth Proportional to 1,215,142.13, 1,676,872.01 and 671,272.82

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Solution

The fourth proportional to 1,215,142.13, 1,676,872.01 and 671,272.82 is: 926,343.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,142.13 : 1,676,872.01 = 671,272.82 : x
  2. Step 2: Convert to fraction form
    1,215,142.13/1,676,872.01 = 671,272.82/x
  3. Step 3: Cross multiply
    1,215,142.13x = 1,676,872.01 × 671,272.82
  4. Step 4: Simplify right side
    1,215,142.13x = 1,125,638,591,191.04
  5. Step 5: Solve for x
    x = 1,125,638,591,191.04/1,215,142.13
  6. Step 6: Final answer
    x = 926,343.16

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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.