Home / 879,799.89-1,319,722.77-280,760.24

Finding the Fourth Proportional to 879,799.89, 1,319,722.77 and 280,760.24

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Solution

The fourth proportional to 879,799.89, 1,319,722.77 and 280,760.24 is: 421,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,799.89 : 1,319,722.77 = 280,760.24 : x
  2. Step 2: Convert to fraction form
    879,799.89/1,319,722.77 = 280,760.24/x
  3. Step 3: Cross multiply
    879,799.89x = 1,319,722.77 × 280,760.24
  4. Step 4: Simplify right side
    879,799.89x = 370,525,685,990.82
  5. Step 5: Solve for x
    x = 370,525,685,990.82/879,799.89
  6. Step 6: Final answer
    x = 421,147.68

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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.