Home / 645,418.44-968,000.04-613,412.88

Finding the Fourth Proportional to 645,418.44, 968,000.04 and 613,412.88

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Solution

The fourth proportional to 645,418.44, 968,000.04 and 613,412.88 is: 919,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,418.44 : 968,000.04 = 613,412.88 : x
  2. Step 2: Convert to fraction form
    645,418.44/968,000.04 = 613,412.88/x
  3. Step 3: Cross multiply
    645,418.44x = 968,000.04 × 613,412.88
  4. Step 4: Simplify right side
    645,418.44x = 593,783,692,376.52
  5. Step 5: Solve for x
    x = 593,783,692,376.52/645,418.44
  6. Step 6: Final answer
    x = 919,998.03

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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.