Home / 486,621.70-729,932.55-171,037.60

Finding the Fourth Proportional to 486,621.70, 729,932.55 and 171,037.60

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Solution

The fourth proportional to 486,621.70, 729,932.55 and 171,037.60 is: 256,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,621.70 : 729,932.55 = 171,037.60 : x
  2. Step 2: Convert to fraction form
    486,621.70/729,932.55 = 171,037.60/x
  3. Step 3: Cross multiply
    486,621.70x = 729,932.55 × 171,037.60
  4. Step 4: Simplify right side
    486,621.70x = 124,845,911,513.88
  5. Step 5: Solve for x
    x = 124,845,911,513.88/486,621.70
  6. Step 6: Final answer
    x = 256,556.40

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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.