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Finding the Fourth Proportional to 1,375,885.52, 1,898,769.52 and 764,048.52

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Solution

The fourth proportional to 1,375,885.52, 1,898,769.52 and 764,048.52 is: 1,054,413.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,885.52 : 1,898,769.52 = 764,048.52 : x
  2. Step 2: Convert to fraction form
    1,375,885.52/1,898,769.52 = 764,048.52/x
  3. Step 3: Cross multiply
    1,375,885.52x = 1,898,769.52 × 764,048.52
  4. Step 4: Simplify right side
    1,375,885.52x = 1,450,752,050,021.35
  5. Step 5: Solve for x
    x = 1,450,752,050,021.35/1,375,885.52
  6. Step 6: Final answer
    x = 1,054,413.35

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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.