Home / 920,773.74-1,270,863.84-618,792.78

Finding the Fourth Proportional to 920,773.74, 1,270,863.84 and 618,792.78

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Solution

The fourth proportional to 920,773.74, 1,270,863.84 and 618,792.78 is: 854,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,773.74 : 1,270,863.84 = 618,792.78 : x
  2. Step 2: Convert to fraction form
    920,773.74/1,270,863.84 = 618,792.78/x
  3. Step 3: Cross multiply
    920,773.74x = 1,270,863.84 × 618,792.78
  4. Step 4: Simplify right side
    920,773.74x = 786,401,368,555.08
  5. Step 5: Solve for x
    x = 786,401,368,555.08/920,773.74
  6. Step 6: Final answer
    x = 854,065.81

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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.