Home / 2,776,515.20-4,164,772.80-781,971.20

Finding the Fourth Proportional to 2,776,515.20, 4,164,772.80 and 781,971.20

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Solution

The fourth proportional to 2,776,515.20, 4,164,772.80 and 781,971.20 is: 1,172,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776,515.20 : 4,164,772.80 = 781,971.20 : x
  2. Step 2: Convert to fraction form
    2,776,515.20/4,164,772.80 = 781,971.20/x
  3. Step 3: Cross multiply
    2,776,515.20x = 4,164,772.80 × 781,971.20
  4. Step 4: Simplify right side
    2,776,515.20x = 3,256,732,384,143.36
  5. Step 5: Solve for x
    x = 3,256,732,384,143.36/2,776,515.20
  6. Step 6: Final answer
    x = 1,172,956.80

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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.