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Finding the Fourth Proportional to 1,897,078.83, 2,845,623.11 and 775,147.83

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Solution

The fourth proportional to 1,897,078.83, 2,845,623.11 and 775,147.83 is: 1,162,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897,078.83 : 2,845,623.11 = 775,147.83 : x
  2. Step 2: Convert to fraction form
    1,897,078.83/2,845,623.11 = 775,147.83/x
  3. Step 3: Cross multiply
    1,897,078.83x = 2,845,623.11 × 775,147.83
  4. Step 4: Simplify right side
    1,897,078.83x = 2,205,778,574,838.61
  5. Step 5: Solve for x
    x = 2,205,778,574,838.61/1,897,078.83
  6. Step 6: Final answer
    x = 1,162,723.73

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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.