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Finding the Fourth Proportional to 1,660,969.20, 2,487,954.60 and 1,660,969.20

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Solution

The fourth proportional to 1,660,969.20, 2,487,954.60 and 1,660,969.20 is: 2,487,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,969.20 : 2,487,954.60 = 1,660,969.20 : x
  2. Step 2: Convert to fraction form
    1,660,969.20/2,487,954.60 = 1,660,969.20/x
  3. Step 3: Cross multiply
    1,660,969.20x = 2,487,954.60 × 1,660,969.20
  4. Step 4: Simplify right side
    1,660,969.20x = 4,132,415,961,598.32
  5. Step 5: Solve for x
    x = 4,132,415,961,598.32/1,660,969.20
  6. Step 6: Final answer
    x = 2,487,954.60

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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.