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Finding the Fourth Proportional to 1,409,652.93, 1,945,322.10 and 765,072.95

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Solution

The fourth proportional to 1,409,652.93, 1,945,322.10 and 765,072.95 is: 1,055,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,652.93 : 1,945,322.10 = 765,072.95 : x
  2. Step 2: Convert to fraction form
    1,409,652.93/1,945,322.10 = 765,072.95/x
  3. Step 3: Cross multiply
    1,409,652.93x = 1,945,322.10 × 765,072.95
  4. Step 4: Simplify right side
    1,409,652.93x = 1,488,313,322,282.47
  5. Step 5: Solve for x
    x = 1,488,313,322,282.47/1,409,652.93
  6. Step 6: Final answer
    x = 1,055,801.25

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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.