Home / 1,215,611.61-1,677,645.03-671,853.61

Finding the Fourth Proportional to 1,215,611.61, 1,677,645.03 and 671,853.61

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Solution

The fourth proportional to 1,215,611.61, 1,677,645.03 and 671,853.61 is: 927,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,611.61 : 1,677,645.03 = 671,853.61 : x
  2. Step 2: Convert to fraction form
    1,215,611.61/1,677,645.03 = 671,853.61/x
  3. Step 3: Cross multiply
    1,215,611.61x = 1,677,645.03 × 671,853.61
  4. Step 4: Simplify right side
    1,215,611.61x = 1,127,131,869,704.06
  5. Step 5: Solve for x
    x = 1,127,131,869,704.06/1,215,611.61
  6. Step 6: Final answer
    x = 927,213.81

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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.