Home / 646,488.97-968,749.29-309,065.85

Finding the Fourth Proportional to 646,488.97, 968,749.29 and 309,065.85

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Solution

The fourth proportional to 646,488.97, 968,749.29 and 309,065.85 is: 463,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,488.97 : 968,749.29 = 309,065.85 : x
  2. Step 2: Convert to fraction form
    646,488.97/968,749.29 = 309,065.85/x
  3. Step 3: Cross multiply
    646,488.97x = 968,749.29 × 309,065.85
  4. Step 4: Simplify right side
    646,488.97x = 299,407,322,750.75
  5. Step 5: Solve for x
    x = 299,407,322,750.75/646,488.97
  6. Step 6: Final answer
    x = 463,128.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.