Home / 708,138.56-1,062,698.28-281,630.60

Finding the Fourth Proportional to 708,138.56, 1,062,698.28 and 281,630.60

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Solution

The fourth proportional to 708,138.56, 1,062,698.28 and 281,630.60 is: 422,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,138.56 : 1,062,698.28 = 281,630.60 : x
  2. Step 2: Convert to fraction form
    708,138.56/1,062,698.28 = 281,630.60/x
  3. Step 3: Cross multiply
    708,138.56x = 1,062,698.28 × 281,630.60
  4. Step 4: Simplify right side
    708,138.56x = 299,288,354,215.37
  5. Step 5: Solve for x
    x = 299,288,354,215.37/708,138.56
  6. Step 6: Final answer
    x = 422,640.95

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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.