Home / 1,540,218.40-2,311,639.80-688,600.60

Finding the Fourth Proportional to 1,540,218.40, 2,311,639.80 and 688,600.60

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Solution

The fourth proportional to 1,540,218.40, 2,311,639.80 and 688,600.60 is: 1,033,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,218.40 : 2,311,639.80 = 688,600.60 : x
  2. Step 2: Convert to fraction form
    1,540,218.40/2,311,639.80 = 688,600.60/x
  3. Step 3: Cross multiply
    1,540,218.40x = 2,311,639.80 × 688,600.60
  4. Step 4: Simplify right side
    1,540,218.40x = 1,591,796,553,263.88
  5. Step 5: Solve for x
    x = 1,591,796,553,263.88/1,540,218.40
  6. Step 6: Final answer
    x = 1,033,487.56

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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.