Home / 1,215,359.07-1,677,213.12-671,507.38

Finding the Fourth Proportional to 1,215,359.07, 1,677,213.12 and 671,507.38

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Solution

The fourth proportional to 1,215,359.07, 1,677,213.12 and 671,507.38 is: 926,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,359.07 : 1,677,213.12 = 671,507.38 : x
  2. Step 2: Convert to fraction form
    1,215,359.07/1,677,213.12 = 671,507.38/x
  3. Step 3: Cross multiply
    1,215,359.07x = 1,677,213.12 × 671,507.38
  4. Step 4: Simplify right side
    1,215,359.07x = 1,126,260,987,912.83
  5. Step 5: Solve for x
    x = 1,126,260,987,912.83/1,215,359.07
  6. Step 6: Final answer
    x = 926,689.91

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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.