Home / 1,212,932.69-1,817,984.23-912,447.12

Finding the Fourth Proportional to 1,212,932.69, 1,817,984.23 and 912,447.12

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Solution

The fourth proportional to 1,212,932.69, 1,817,984.23 and 912,447.12 is: 1,367,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,932.69 : 1,817,984.23 = 912,447.12 : x
  2. Step 2: Convert to fraction form
    1,212,932.69/1,817,984.23 = 912,447.12/x
  3. Step 3: Cross multiply
    1,212,932.69x = 1,817,984.23 × 912,447.12
  4. Step 4: Simplify right side
    1,212,932.69x = 1,658,814,472,587.80
  5. Step 5: Solve for x
    x = 1,658,814,472,587.80/1,212,932.69
  6. Step 6: Final answer
    x = 1,367,606.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.