Home / 1,988,812.80-2,983,219.20-726,476.40

Finding the Fourth Proportional to 1,988,812.80, 2,983,219.20 and 726,476.40

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Solution

The fourth proportional to 1,988,812.80, 2,983,219.20 and 726,476.40 is: 1,089,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,812.80 : 2,983,219.20 = 726,476.40 : x
  2. Step 2: Convert to fraction form
    1,988,812.80/2,983,219.20 = 726,476.40/x
  3. Step 3: Cross multiply
    1,988,812.80x = 2,983,219.20 × 726,476.40
  4. Step 4: Simplify right side
    1,988,812.80x = 2,167,238,344,826.88
  5. Step 5: Solve for x
    x = 2,167,238,344,826.88/1,988,812.80
  6. Step 6: Final answer
    x = 1,089,714.60

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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.