Home / 1,224,139.80-1,836,209.70-664,267.80

Finding the Fourth Proportional to 1,224,139.80, 1,836,209.70 and 664,267.80

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Solution

The fourth proportional to 1,224,139.80, 1,836,209.70 and 664,267.80 is: 996,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,139.80 : 1,836,209.70 = 664,267.80 : x
  2. Step 2: Convert to fraction form
    1,224,139.80/1,836,209.70 = 664,267.80/x
  3. Step 3: Cross multiply
    1,224,139.80x = 1,836,209.70 × 664,267.80
  4. Step 4: Simplify right side
    1,224,139.80x = 1,219,734,977,757.66
  5. Step 5: Solve for x
    x = 1,219,734,977,757.66/1,224,139.80
  6. Step 6: Final answer
    x = 996,401.70

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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.