Home / 920,397.42-1,270,540.38-618,766.38

Finding the Fourth Proportional to 920,397.42, 1,270,540.38 and 618,766.38

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Solution

The fourth proportional to 920,397.42, 1,270,540.38 and 618,766.38 is: 854,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,397.42 : 1,270,540.38 = 618,766.38 : x
  2. Step 2: Convert to fraction form
    920,397.42/1,270,540.38 = 618,766.38/x
  3. Step 3: Cross multiply
    920,397.42x = 1,270,540.38 × 618,766.38
  4. Step 4: Simplify right side
    920,397.42x = 786,167,671,576.42
  5. Step 5: Solve for x
    x = 786,167,671,576.42/920,397.42
  6. Step 6: Final answer
    x = 854,161.10

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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.