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Finding the Fourth Proportional to 1,845,388.80, 2,766,009.60 and 946,483.20

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Solution

The fourth proportional to 1,845,388.80, 2,766,009.60 and 946,483.20 is: 1,418,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845,388.80 : 2,766,009.60 = 946,483.20 : x
  2. Step 2: Convert to fraction form
    1,845,388.80/2,766,009.60 = 946,483.20/x
  3. Step 3: Cross multiply
    1,845,388.80x = 2,766,009.60 × 946,483.20
  4. Step 4: Simplify right side
    1,845,388.80x = 2,617,981,617,438.72
  5. Step 5: Solve for x
    x = 2,617,981,617,438.72/1,845,388.80
  6. Step 6: Final answer
    x = 1,418,661.27

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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.