Home / 1,188,411.88-1,778,090.64-1,045,119.64

Finding the Fourth Proportional to 1,188,411.88, 1,778,090.64 and 1,045,119.64

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Solution

The fourth proportional to 1,188,411.88, 1,778,090.64 and 1,045,119.64 is: 1,563,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,411.88 : 1,778,090.64 = 1,045,119.64 : x
  2. Step 2: Convert to fraction form
    1,188,411.88/1,778,090.64 = 1,045,119.64/x
  3. Step 3: Cross multiply
    1,188,411.88x = 1,778,090.64 × 1,045,119.64
  4. Step 4: Simplify right side
    1,188,411.88x = 1,858,317,449,564.17
  5. Step 5: Solve for x
    x = 1,858,317,449,564.17/1,188,411.88
  6. Step 6: Final answer
    x = 1,563,698.14

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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.