Home / 1,261,372.20-1,740,698.46-688,425

Finding the Fourth Proportional to 1,261,372.20, 1,740,698.46 and 688,425

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Solution

The fourth proportional to 1,261,372.20, 1,740,698.46 and 688,425 is: 950,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,372.20 : 1,740,698.46 = 688,425 : x
  2. Step 2: Convert to fraction form
    1,261,372.20/1,740,698.46 = 688,425/x
  3. Step 3: Cross multiply
    1,261,372.20x = 1,740,698.46 × 688,425
  4. Step 4: Simplify right side
    1,261,372.20x = 1,198,340,337,325.50
  5. Step 5: Solve for x
    x = 1,198,340,337,325.50/1,261,372.20
  6. Step 6: Final answer
    x = 950,029.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.