Home / 879,840.24-1,319,744.16-280,796.64

Finding the Fourth Proportional to 879,840.24, 1,319,744.16 and 280,796.64

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Solution

The fourth proportional to 879,840.24, 1,319,744.16 and 280,796.64 is: 421,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,840.24 : 1,319,744.16 = 280,796.64 : x
  2. Step 2: Convert to fraction form
    879,840.24/1,319,744.16 = 280,796.64/x
  3. Step 3: Cross multiply
    879,840.24x = 1,319,744.16 × 280,796.64
  4. Step 4: Simplify right side
    879,840.24x = 370,579,725,787.62
  5. Step 5: Solve for x
    x = 370,579,725,787.62/879,840.24
  6. Step 6: Final answer
    x = 421,189.79

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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.