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Finding the Fourth Proportional to 1,295,935.68, 1,787,781.60 and 843,061.44

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Solution

The fourth proportional to 1,295,935.68, 1,787,781.60 and 843,061.44 is: 1,163,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,935.68 : 1,787,781.60 = 843,061.44 : x
  2. Step 2: Convert to fraction form
    1,295,935.68/1,787,781.60 = 843,061.44/x
  3. Step 3: Cross multiply
    1,295,935.68x = 1,787,781.60 × 843,061.44
  4. Step 4: Simplify right side
    1,295,935.68x = 1,507,209,730,101.50
  5. Step 5: Solve for x
    x = 1,507,209,730,101.50/1,295,935.68
  6. Step 6: Final answer
    x = 1,163,028.19

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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.