Home / 689,198.10-950,954-402,662.82

Finding the Fourth Proportional to 689,198.10, 950,954 and 402,662.82

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Solution

The fourth proportional to 689,198.10, 950,954 and 402,662.82 is: 555,593.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,198.10 : 950,954 = 402,662.82 : x
  2. Step 2: Convert to fraction form
    689,198.10/950,954 = 402,662.82/x
  3. Step 3: Cross multiply
    689,198.10x = 950,954 × 402,662.82
  4. Step 4: Simplify right side
    689,198.10x = 382,913,819,330.28
  5. Step 5: Solve for x
    x = 382,913,819,330.28/689,198.10
  6. Step 6: Final answer
    x = 555,593.26

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1.5x scale

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.