Home / 1,912,387.20-2,639,072.64-1,052,929.92

Finding the Fourth Proportional to 1,912,387.20, 2,639,072.64 and 1,052,929.92

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Solution

The fourth proportional to 1,912,387.20, 2,639,072.64 and 1,052,929.92 is: 1,453,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,387.20 : 2,639,072.64 = 1,052,929.92 : x
  2. Step 2: Convert to fraction form
    1,912,387.20/2,639,072.64 = 1,052,929.92/x
  3. Step 3: Cross multiply
    1,912,387.20x = 2,639,072.64 × 1,052,929.92
  4. Step 4: Simplify right side
    1,912,387.20x = 2,778,758,543,709.39
  5. Step 5: Solve for x
    x = 2,778,758,543,709.39/1,912,387.20
  6. Step 6: Final answer
    x = 1,453,031.34

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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.