Home / 1,231,994.24-1,700,134-688,137.90

Finding the Fourth Proportional to 1,231,994.24, 1,700,134 and 688,137.90

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Solution

The fourth proportional to 1,231,994.24, 1,700,134 and 688,137.90 is: 949,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,994.24 : 1,700,134 = 688,137.90 : x
  2. Step 2: Convert to fraction form
    1,231,994.24/1,700,134 = 688,137.90/x
  3. Step 3: Cross multiply
    1,231,994.24x = 1,700,134 × 688,137.90
  4. Step 4: Simplify right side
    1,231,994.24x = 1,169,926,640,478.60
  5. Step 5: Solve for x
    x = 1,169,926,640,478.60/1,231,994.24
  6. Step 6: Final answer
    x = 949,620.22

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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.