Home / 645,991.32-968,913.15-172,713.58

Finding the Fourth Proportional to 645,991.32, 968,913.15 and 172,713.58

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Solution

The fourth proportional to 645,991.32, 968,913.15 and 172,713.58 is: 259,050.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,991.32 : 968,913.15 = 172,713.58 : x
  2. Step 2: Convert to fraction form
    645,991.32/968,913.15 = 172,713.58/x
  3. Step 3: Cross multiply
    645,991.32x = 968,913.15 × 172,713.58
  4. Step 4: Simplify right side
    645,991.32x = 167,344,458,845.58
  5. Step 5: Solve for x
    x = 167,344,458,845.58/645,991.32
  6. Step 6: Final answer
    x = 259,050.63

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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.