Home / 1,918,819.64-2,877,704.04-720,649.28

Finding the Fourth Proportional to 1,918,819.64, 2,877,704.04 and 720,649.28

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Solution

The fourth proportional to 1,918,819.64, 2,877,704.04 and 720,649.28 is: 1,080,776.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,819.64 : 2,877,704.04 = 720,649.28 : x
  2. Step 2: Convert to fraction form
    1,918,819.64/2,877,704.04 = 720,649.28/x
  3. Step 3: Cross multiply
    1,918,819.64x = 2,877,704.04 × 720,649.28
  4. Step 4: Simplify right side
    1,918,819.64x = 2,073,815,344,479.09
  5. Step 5: Solve for x
    x = 2,073,815,344,479.09/1,918,819.64
  6. Step 6: Final answer
    x = 1,080,776.59

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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.