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Finding the Fourth Proportional to 1,409,730.02, 1,945,422.53 and 765,150.22

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Solution

The fourth proportional to 1,409,730.02, 1,945,422.53 and 765,150.22 is: 1,055,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,730.02 : 1,945,422.53 = 765,150.22 : x
  2. Step 2: Convert to fraction form
    1,409,730.02/1,945,422.53 = 765,150.22/x
  3. Step 3: Cross multiply
    1,409,730.02x = 1,945,422.53 × 765,150.22
  4. Step 4: Simplify right side
    1,409,730.02x = 1,488,540,467,354.80
  5. Step 5: Solve for x
    x = 1,488,540,467,354.80/1,409,730.02
  6. Step 6: Final answer
    x = 1,055,904.64

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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.