Home / 920,771.80-1,270,861.16-618,790.84

Finding the Fourth Proportional to 920,771.80, 1,270,861.16 and 618,790.84

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Solution

The fourth proportional to 920,771.80, 1,270,861.16 and 618,790.84 is: 854,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,771.80 : 1,270,861.16 = 618,790.84 : x
  2. Step 2: Convert to fraction form
    920,771.80/1,270,861.16 = 618,790.84/x
  3. Step 3: Cross multiply
    920,771.80x = 1,270,861.16 × 618,790.84
  4. Step 4: Simplify right side
    920,771.80x = 786,397,244,719.77
  5. Step 5: Solve for x
    x = 786,397,244,719.77/920,771.80
  6. Step 6: Final answer
    x = 854,063.13

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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.