Home / 687,972.70-949,851.98-446,942.22

Finding the Fourth Proportional to 687,972.70, 949,851.98 and 446,942.22

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Solution

The fourth proportional to 687,972.70, 949,851.98 and 446,942.22 is: 617,072.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,972.70 : 949,851.98 = 446,942.22 : x
  2. Step 2: Convert to fraction form
    687,972.70/949,851.98 = 446,942.22/x
  3. Step 3: Cross multiply
    687,972.70x = 949,851.98 × 446,942.22
  4. Step 4: Simplify right side
    687,972.70x = 424,528,952,612.60
  5. Step 5: Solve for x
    x = 424,528,952,612.60/687,972.70
  6. Step 6: Final answer
    x = 617,072.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.