Home / 1,919,106.46-2,877,863.90-781,096.28

Finding the Fourth Proportional to 1,919,106.46, 2,877,863.90 and 781,096.28

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Solution

The fourth proportional to 1,919,106.46, 2,877,863.90 and 781,096.28 is: 1,171,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,106.46 : 2,877,863.90 = 781,096.28 : x
  2. Step 2: Convert to fraction form
    1,919,106.46/2,877,863.90 = 781,096.28/x
  3. Step 3: Cross multiply
    1,919,106.46x = 2,877,863.90 × 781,096.28
  4. Step 4: Simplify right side
    1,919,106.46x = 2,247,888,786,636.29
  5. Step 5: Solve for x
    x = 2,247,888,786,636.29/1,919,106.46
  6. Step 6: Final answer
    x = 1,171,320.53

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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.