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Finding the Fourth Proportional to 1,295,301.60, 1,941,202.80 and 867,621.60

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Solution

The fourth proportional to 1,295,301.60, 1,941,202.80 and 867,621.60 is: 1,300,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,301.60 : 1,941,202.80 = 867,621.60 : x
  2. Step 2: Convert to fraction form
    1,295,301.60/1,941,202.80 = 867,621.60/x
  3. Step 3: Cross multiply
    1,295,301.60x = 1,941,202.80 × 867,621.60
  4. Step 4: Simplify right side
    1,295,301.60x = 1,684,229,479,260.48
  5. Step 5: Solve for x
    x = 1,684,229,479,260.48/1,295,301.60
  6. Step 6: Final answer
    x = 1,300,260.48

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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.