Home / 842,720.68-1,264,076.16-281,750.32

Finding the Fourth Proportional to 842,720.68, 1,264,076.16 and 281,750.32

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Solution

The fourth proportional to 842,720.68, 1,264,076.16 and 281,750.32 is: 422,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,720.68 : 1,264,076.16 = 281,750.32 : x
  2. Step 2: Convert to fraction form
    842,720.68/1,264,076.16 = 281,750.32/x
  3. Step 3: Cross multiply
    842,720.68x = 1,264,076.16 × 281,750.32
  4. Step 4: Simplify right side
    842,720.68x = 356,153,862,584.37
  5. Step 5: Solve for x
    x = 356,153,862,584.37/842,720.68
  6. Step 6: Final answer
    x = 422,623.86

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1.5x scale

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.