Home / 1,540,924.20-2,311,811.46-642,788.28

Finding the Fourth Proportional to 1,540,924.20, 2,311,811.46 and 642,788.28

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Solution

The fourth proportional to 1,540,924.20, 2,311,811.46 and 642,788.28 is: 964,359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,924.20 : 2,311,811.46 = 642,788.28 : x
  2. Step 2: Convert to fraction form
    1,540,924.20/2,311,811.46 = 642,788.28/x
  3. Step 3: Cross multiply
    1,540,924.20x = 2,311,811.46 × 642,788.28
  4. Step 4: Simplify right side
    1,540,924.20x = 1,486,005,312,057.69
  5. Step 5: Solve for x
    x = 1,486,005,312,057.69/1,540,924.20
  6. Step 6: Final answer
    x = 964,359.77

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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.