Home / 813,053.75-1,219,107.81-307,653.74

Finding the Fourth Proportional to 813,053.75, 1,219,107.81 and 307,653.74

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Solution

The fourth proportional to 813,053.75, 1,219,107.81 and 307,653.74 is: 461,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,053.75 : 1,219,107.81 = 307,653.74 : x
  2. Step 2: Convert to fraction form
    813,053.75/1,219,107.81 = 307,653.74/x
  3. Step 3: Cross multiply
    813,053.75x = 1,219,107.81 × 307,653.74
  4. Step 4: Simplify right side
    813,053.75x = 375,063,083,697.01
  5. Step 5: Solve for x
    x = 375,063,083,697.01/813,053.75
  6. Step 6: Final answer
    x = 461,301.71

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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.