Home / 646,183.68-891,741.96-355,829.28

Finding the Fourth Proportional to 646,183.68, 891,741.96 and 355,829.28

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Solution

The fourth proportional to 646,183.68, 891,741.96 and 355,829.28 is: 491,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,183.68 : 891,741.96 = 355,829.28 : x
  2. Step 2: Convert to fraction form
    646,183.68/891,741.96 = 355,829.28/x
  3. Step 3: Cross multiply
    646,183.68x = 891,741.96 × 355,829.28
  4. Step 4: Simplify right side
    646,183.68x = 317,307,899,572.59
  5. Step 5: Solve for x
    x = 317,307,899,572.59/646,183.68
  6. Step 6: Final answer
    x = 491,049.08

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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.