Home / 1,284,609.75-1,926,840.51-386,032.20

Finding the Fourth Proportional to 1,284,609.75, 1,926,840.51 and 386,032.20

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Solution

The fourth proportional to 1,284,609.75, 1,926,840.51 and 386,032.20 is: 579,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,609.75 : 1,926,840.51 = 386,032.20 : x
  2. Step 2: Convert to fraction form
    1,284,609.75/1,926,840.51 = 386,032.20/x
  3. Step 3: Cross multiply
    1,284,609.75x = 1,926,840.51 × 386,032.20
  4. Step 4: Simplify right side
    1,284,609.75x = 743,822,481,124.42
  5. Step 5: Solve for x
    x = 743,822,481,124.42/1,284,609.75
  6. Step 6: Final answer
    x = 579,026.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.