Home / 920,772.80-1,270,862.54-618,791.84

Finding the Fourth Proportional to 920,772.80, 1,270,862.54 and 618,791.84

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Solution

The fourth proportional to 920,772.80, 1,270,862.54 and 618,791.84 is: 854,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,772.80 : 1,270,862.54 = 618,791.84 : x
  2. Step 2: Convert to fraction form
    920,772.80/1,270,862.54 = 618,791.84/x
  3. Step 3: Cross multiply
    920,772.80x = 1,270,862.54 × 618,791.84
  4. Step 4: Simplify right side
    920,772.80x = 786,399,369,513.67
  5. Step 5: Solve for x
    x = 786,399,369,513.67/920,772.80
  6. Step 6: Final answer
    x = 854,064.51

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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.