Home / 645,845.20-968,767.80-616,814.80

Finding the Fourth Proportional to 645,845.20, 968,767.80 and 616,814.80

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Solution

The fourth proportional to 645,845.20, 968,767.80 and 616,814.80 is: 925,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,845.20 : 968,767.80 = 616,814.80 : x
  2. Step 2: Convert to fraction form
    645,845.20/968,767.80 = 616,814.80/x
  3. Step 3: Cross multiply
    645,845.20x = 968,767.80 × 616,814.80
  4. Step 4: Simplify right side
    645,845.20x = 597,550,316,803.44
  5. Step 5: Solve for x
    x = 597,550,316,803.44/645,845.20
  6. Step 6: Final answer
    x = 925,222.20

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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.