Home / 879,726.37-1,319,566.46-280,724.08

Finding the Fourth Proportional to 879,726.37, 1,319,566.46 and 280,724.08

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Solution

The fourth proportional to 879,726.37, 1,319,566.46 and 280,724.08 is: 421,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,726.37 : 1,319,566.46 = 280,724.08 : x
  2. Step 2: Convert to fraction form
    879,726.37/1,319,566.46 = 280,724.08/x
  3. Step 3: Cross multiply
    879,726.37x = 1,319,566.46 × 280,724.08
  4. Step 4: Simplify right side
    879,726.37x = 370,434,074,586.34
  5. Step 5: Solve for x
    x = 370,434,074,586.34/879,726.37
  6. Step 6: Final answer
    x = 421,078.75

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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.