Home / 920,072.67-1,269,611.24-678,485.31

Finding the Fourth Proportional to 920,072.67, 1,269,611.24 and 678,485.31

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Solution

The fourth proportional to 920,072.67, 1,269,611.24 and 678,485.31 is: 936,244.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,072.67 : 1,269,611.24 = 678,485.31 : x
  2. Step 2: Convert to fraction form
    920,072.67/1,269,611.24 = 678,485.31/x
  3. Step 3: Cross multiply
    920,072.67x = 1,269,611.24 × 678,485.31
  4. Step 4: Simplify right side
    920,072.67x = 861,412,575,750.89
  5. Step 5: Solve for x
    x = 861,412,575,750.89/920,072.67
  6. Step 6: Final answer
    x = 936,244.06

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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.