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Finding the Fourth Proportional to 1,426,815.62, 1,969,005 and 782,222

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Solution

The fourth proportional to 1,426,815.62, 1,969,005 and 782,222 is: 1,079,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,815.62 : 1,969,005 = 782,222 : x
  2. Step 2: Convert to fraction form
    1,426,815.62/1,969,005 = 782,222/x
  3. Step 3: Cross multiply
    1,426,815.62x = 1,969,005 × 782,222
  4. Step 4: Simplify right side
    1,426,815.62x = 1,540,199,029,110
  5. Step 5: Solve for x
    x = 1,540,199,029,110/1,426,815.62
  6. Step 6: Final answer
    x = 1,079,466.06

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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.