Home / 874,458.78-1,312,069.38-306,247.50

Finding the Fourth Proportional to 874,458.78, 1,312,069.38 and 306,247.50

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Solution

The fourth proportional to 874,458.78, 1,312,069.38 and 306,247.50 is: 459,504.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,458.78 : 1,312,069.38 = 306,247.50 : x
  2. Step 2: Convert to fraction form
    874,458.78/1,312,069.38 = 306,247.50/x
  3. Step 3: Cross multiply
    874,458.78x = 1,312,069.38 × 306,247.50
  4. Step 4: Simplify right side
    874,458.78x = 401,817,967,451.55
  5. Step 5: Solve for x
    x = 401,817,967,451.55/874,458.78
  6. Step 6: Final answer
    x = 459,504.75

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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.