Home / 1,213,815.51-1,820,920.37-455,716.53

Finding the Fourth Proportional to 1,213,815.51, 1,820,920.37 and 455,716.53

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Solution

The fourth proportional to 1,213,815.51, 1,820,920.37 and 455,716.53 is: 683,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,815.51 : 1,820,920.37 = 455,716.53 : x
  2. Step 2: Convert to fraction form
    1,213,815.51/1,820,920.37 = 455,716.53/x
  3. Step 3: Cross multiply
    1,213,815.51x = 1,820,920.37 × 455,716.53
  4. Step 4: Simplify right side
    1,213,815.51x = 829,823,510,144.13
  5. Step 5: Solve for x
    x = 829,823,510,144.13/1,213,815.51
  6. Step 6: Final answer
    x = 683,648.79

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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.