Home / 813,206.45-1,122,231.51-450,636.38

Finding the Fourth Proportional to 813,206.45, 1,122,231.51 and 450,636.38

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Solution

The fourth proportional to 813,206.45, 1,122,231.51 and 450,636.38 is: 621,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,206.45 : 1,122,231.51 = 450,636.38 : x
  2. Step 2: Convert to fraction form
    813,206.45/1,122,231.51 = 450,636.38/x
  3. Step 3: Cross multiply
    813,206.45x = 1,122,231.51 × 450,636.38
  4. Step 4: Simplify right side
    813,206.45x = 505,718,343,785.54
  5. Step 5: Solve for x
    x = 505,718,343,785.54/813,206.45
  6. Step 6: Final answer
    x = 621,881.86

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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.