Home / 1,152,043.16-1,728,265.41-393,960.51

Finding the Fourth Proportional to 1,152,043.16, 1,728,265.41 and 393,960.51

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Solution

The fourth proportional to 1,152,043.16, 1,728,265.41 and 393,960.51 is: 591,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,043.16 : 1,728,265.41 = 393,960.51 : x
  2. Step 2: Convert to fraction form
    1,152,043.16/1,728,265.41 = 393,960.51/x
  3. Step 3: Cross multiply
    1,152,043.16x = 1,728,265.41 × 393,960.51
  4. Step 4: Simplify right side
    1,152,043.16x = 680,868,322,338.96
  5. Step 5: Solve for x
    x = 680,868,322,338.96/1,152,043.16
  6. Step 6: Final answer
    x = 591,009.39

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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.