Home / 800,450.02-1,103,872.41-637,647.77

Finding the Fourth Proportional to 800,450.02, 1,103,872.41 and 637,647.77

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Solution

The fourth proportional to 800,450.02, 1,103,872.41 and 637,647.77 is: 879,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,450.02 : 1,103,872.41 = 637,647.77 : x
  2. Step 2: Convert to fraction form
    800,450.02/1,103,872.41 = 637,647.77/x
  3. Step 3: Cross multiply
    800,450.02x = 1,103,872.41 × 637,647.77
  4. Step 4: Simplify right side
    800,450.02x = 703,881,780,601.03
  5. Step 5: Solve for x
    x = 703,881,780,601.03/800,450.02
  6. Step 6: Final answer
    x = 879,357.57

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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.