Home / 920,853.18-1,270,973.43-618,872.22

Finding the Fourth Proportional to 920,853.18, 1,270,973.43 and 618,872.22

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Solution

The fourth proportional to 920,853.18, 1,270,973.43 and 618,872.22 is: 854,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,853.18 : 1,270,973.43 = 618,872.22 : x
  2. Step 2: Convert to fraction form
    920,853.18/1,270,973.43 = 618,872.22/x
  3. Step 3: Cross multiply
    920,853.18x = 1,270,973.43 × 618,872.22
  4. Step 4: Simplify right side
    920,853.18x = 786,570,148,185.12
  5. Step 5: Solve for x
    x = 786,570,148,185.12/920,853.18
  6. Step 6: Final answer
    x = 854,175.42

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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.