Home / 874,460.78-1,312,072.38-306,249.50

Finding the Fourth Proportional to 874,460.78, 1,312,072.38 and 306,249.50

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Solution

The fourth proportional to 874,460.78, 1,312,072.38 and 306,249.50 is: 459,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,460.78 : 1,312,072.38 = 306,249.50 : x
  2. Step 2: Convert to fraction form
    874,460.78/1,312,072.38 = 306,249.50/x
  3. Step 3: Cross multiply
    874,460.78x = 1,312,072.38 × 306,249.50
  4. Step 4: Simplify right side
    874,460.78x = 401,821,510,338.81
  5. Step 5: Solve for x
    x = 401,821,510,338.81/874,460.78
  6. Step 6: Final answer
    x = 459,507.76

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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.