Home / 855,104.49-1,280,099.57-517,122.27

Finding the Fourth Proportional to 855,104.49, 1,280,099.57 and 517,122.27

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Solution

The fourth proportional to 855,104.49, 1,280,099.57 and 517,122.27 is: 774,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,104.49 : 1,280,099.57 = 517,122.27 : x
  2. Step 2: Convert to fraction form
    855,104.49/1,280,099.57 = 517,122.27/x
  3. Step 3: Cross multiply
    855,104.49x = 1,280,099.57 × 517,122.27
  4. Step 4: Simplify right side
    855,104.49x = 661,967,992,878.81
  5. Step 5: Solve for x
    x = 661,967,992,878.81/855,104.49
  6. Step 6: Final answer
    x = 774,136.96

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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.