Home / 688,268.70-949,644.63-401,625.18

Finding the Fourth Proportional to 688,268.70, 949,644.63 and 401,625.18

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Solution

The fourth proportional to 688,268.70, 949,644.63 and 401,625.18 is: 554,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,268.70 : 949,644.63 = 401,625.18 : x
  2. Step 2: Convert to fraction form
    688,268.70/949,644.63 = 401,625.18/x
  3. Step 3: Cross multiply
    688,268.70x = 949,644.63 × 401,625.18
  4. Step 4: Simplify right side
    688,268.70x = 381,401,195,459.78
  5. Step 5: Solve for x
    x = 381,401,195,459.78/688,268.70
  6. Step 6: Final answer
    x = 554,145.78

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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.