Home / 451,278.72-622,611.90-260,287.20

Finding the Fourth Proportional to 451,278.72, 622,611.90 and 260,287.20

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Solution

The fourth proportional to 451,278.72, 622,611.90 and 260,287.20 is: 359,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,278.72 : 622,611.90 = 260,287.20 : x
  2. Step 2: Convert to fraction form
    451,278.72/622,611.90 = 260,287.20/x
  3. Step 3: Cross multiply
    451,278.72x = 622,611.90 × 260,287.20
  4. Step 4: Simplify right side
    451,278.72x = 162,057,908,137.68
  5. Step 5: Solve for x
    x = 162,057,908,137.68/451,278.72
  6. Step 6: Final answer
    x = 359,108.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.