Home / 1,215,367.38-1,677,240.80-671,538.20

Finding the Fourth Proportional to 1,215,367.38, 1,677,240.80 and 671,538.20

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Solution

The fourth proportional to 1,215,367.38, 1,677,240.80 and 671,538.20 is: 926,741.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,367.38 : 1,677,240.80 = 671,538.20 : x
  2. Step 2: Convert to fraction form
    1,215,367.38/1,677,240.80 = 671,538.20/x
  3. Step 3: Cross multiply
    1,215,367.38x = 1,677,240.80 × 671,538.20
  4. Step 4: Simplify right side
    1,215,367.38x = 1,126,331,273,670.51
  5. Step 5: Solve for x
    x = 1,126,331,273,670.51/1,215,367.38
  6. Step 6: Final answer
    x = 926,741.41

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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.