Home / 879,808.78-1,319,736.08-280,769.14

Finding the Fourth Proportional to 879,808.78, 1,319,736.08 and 280,769.14

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Solution

The fourth proportional to 879,808.78, 1,319,736.08 and 280,769.14 is: 421,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,808.78 : 1,319,736.08 = 280,769.14 : x
  2. Step 2: Convert to fraction form
    879,808.78/1,319,736.08 = 280,769.14/x
  3. Step 3: Cross multiply
    879,808.78x = 1,319,736.08 × 280,769.14
  4. Step 4: Simplify right side
    879,808.78x = 370,541,164,208.57
  5. Step 5: Solve for x
    x = 370,541,164,208.57/879,808.78
  6. Step 6: Final answer
    x = 421,161.02

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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.