Home / 1,426,812.11-1,969,000.20-782,218.47

Finding the Fourth Proportional to 1,426,812.11, 1,969,000.20 and 782,218.47

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Solution

The fourth proportional to 1,426,812.11, 1,969,000.20 and 782,218.47 is: 1,079,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,812.11 : 1,969,000.20 = 782,218.47 : x
  2. Step 2: Convert to fraction form
    1,426,812.11/1,969,000.20 = 782,218.47/x
  3. Step 3: Cross multiply
    1,426,812.11x = 1,969,000.20 × 782,218.47
  4. Step 4: Simplify right side
    1,426,812.11x = 1,540,188,323,873.69
  5. Step 5: Solve for x
    x = 1,540,188,323,873.69/1,426,812.11
  6. Step 6: Final answer
    x = 1,079,461.21

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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.