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Finding the Fourth Proportional to 1,282,041.03, 1,769,270.13 and 738,163.29

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Solution

The fourth proportional to 1,282,041.03, 1,769,270.13 and 738,163.29 is: 1,018,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,041.03 : 1,769,270.13 = 738,163.29 : x
  2. Step 2: Convert to fraction form
    1,282,041.03/1,769,270.13 = 738,163.29/x
  3. Step 3: Cross multiply
    1,282,041.03x = 1,769,270.13 × 738,163.29
  4. Step 4: Simplify right side
    1,282,041.03x = 1,306,010,260,059.53
  5. Step 5: Solve for x
    x = 1,306,010,260,059.53/1,282,041.03
  6. Step 6: Final answer
    x = 1,018,696.15

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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.