Home / 1,412,767.76-1,949,621.82-768,187.40

Finding the Fourth Proportional to 1,412,767.76, 1,949,621.82 and 768,187.40

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Solution

The fourth proportional to 1,412,767.76, 1,949,621.82 and 768,187.40 is: 1,060,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,767.76 : 1,949,621.82 = 768,187.40 : x
  2. Step 2: Convert to fraction form
    1,412,767.76/1,949,621.82 = 768,187.40/x
  3. Step 3: Cross multiply
    1,412,767.76x = 1,949,621.82 × 768,187.40
  4. Step 4: Simplify right side
    1,412,767.76x = 1,497,674,916,889.07
  5. Step 5: Solve for x
    x = 1,497,674,916,889.07/1,412,767.76
  6. Step 6: Final answer
    x = 1,060,099.87

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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.