Home / 645,600.48-968,400.80-172,287.52

Finding the Fourth Proportional to 645,600.48, 968,400.80 and 172,287.52

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Solution

The fourth proportional to 645,600.48, 968,400.80 and 172,287.52 is: 258,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,600.48 : 968,400.80 = 172,287.52 : x
  2. Step 2: Convert to fraction form
    645,600.48/968,400.80 = 172,287.52/x
  3. Step 3: Cross multiply
    645,600.48x = 968,400.80 × 172,287.52
  4. Step 4: Simplify right side
    645,600.48x = 166,843,372,198.02
  5. Step 5: Solve for x
    x = 166,843,372,198.02/645,600.48
  6. Step 6: Final answer
    x = 258,431.30

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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.