Home / 645,927.15-968,330.23-325,811.80

Finding the Fourth Proportional to 645,927.15, 968,330.23 and 325,811.80

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Solution

The fourth proportional to 645,927.15, 968,330.23 and 325,811.80 is: 488,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,927.15 : 968,330.23 = 325,811.80 : x
  2. Step 2: Convert to fraction form
    645,927.15/968,330.23 = 325,811.80/x
  3. Step 3: Cross multiply
    645,927.15x = 968,330.23 × 325,811.80
  4. Step 4: Simplify right side
    645,927.15x = 315,493,412,896.75
  5. Step 5: Solve for x
    x = 315,493,412,896.75/645,927.15
  6. Step 6: Final answer
    x = 488,434.98

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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.