Home / 1,215,367.28-1,677,240.68-671,538.11

Finding the Fourth Proportional to 1,215,367.28, 1,677,240.68 and 671,538.11

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Solution

The fourth proportional to 1,215,367.28, 1,677,240.68 and 671,538.11 is: 926,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,367.28 : 1,677,240.68 = 671,538.11 : x
  2. Step 2: Convert to fraction form
    1,215,367.28/1,677,240.68 = 671,538.11/x
  3. Step 3: Cross multiply
    1,215,367.28x = 1,677,240.68 × 671,538.11
  4. Step 4: Simplify right side
    1,215,367.28x = 1,126,331,037,097.73
  5. Step 5: Solve for x
    x = 1,126,331,037,097.73/1,215,367.28
  6. Step 6: Final answer
    x = 926,741.29

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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.