Home / 1,398,790.20-2,097,671.22-499,989.36

Finding the Fourth Proportional to 1,398,790.20, 2,097,671.22 and 499,989.36

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Solution

The fourth proportional to 1,398,790.20, 2,097,671.22 and 499,989.36 is: 749,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,790.20 : 2,097,671.22 = 499,989.36 : x
  2. Step 2: Convert to fraction form
    1,398,790.20/2,097,671.22 = 499,989.36/x
  3. Step 3: Cross multiply
    1,398,790.20x = 2,097,671.22 × 499,989.36
  4. Step 4: Simplify right side
    1,398,790.20x = 1,048,813,290,778.22
  5. Step 5: Solve for x
    x = 1,048,813,290,778.22/1,398,790.20
  6. Step 6: Final answer
    x = 749,800.29

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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.