Home / 1,426,825.23-1,969,018.29-782,231.64

Finding the Fourth Proportional to 1,426,825.23, 1,969,018.29 and 782,231.64

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Solution

The fourth proportional to 1,426,825.23, 1,969,018.29 and 782,231.64 is: 1,079,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,825.23 : 1,969,018.29 = 782,231.64 : x
  2. Step 2: Convert to fraction form
    1,426,825.23/1,969,018.29 = 782,231.64/x
  3. Step 3: Cross multiply
    1,426,825.23x = 1,969,018.29 × 782,231.64
  4. Step 4: Simplify right side
    1,426,825.23x = 1,540,228,406,176.70
  5. Step 5: Solve for x
    x = 1,540,228,406,176.70/1,426,825.23
  6. Step 6: Final answer
    x = 1,079,479.37

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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.