Home / 689,164.83-950,908.10-402,629.56

Finding the Fourth Proportional to 689,164.83, 950,908.10 and 402,629.56

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Solution

The fourth proportional to 689,164.83, 950,908.10 and 402,629.56 is: 555,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,164.83 : 950,908.10 = 402,629.56 : x
  2. Step 2: Convert to fraction form
    689,164.83/950,908.10 = 402,629.56/x
  3. Step 3: Cross multiply
    689,164.83x = 950,908.10 × 402,629.56
  4. Step 4: Simplify right side
    689,164.83x = 382,863,706,523.44
  5. Step 5: Solve for x
    x = 382,863,706,523.44/689,164.83
  6. Step 6: Final answer
    x = 555,547.37

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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.