Home / 1,913,619.15-2,640,943.31-1,054,333.89

Finding the Fourth Proportional to 1,913,619.15, 2,640,943.31 and 1,054,333.89

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Solution

The fourth proportional to 1,913,619.15, 2,640,943.31 and 1,054,333.89 is: 1,455,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,619.15 : 2,640,943.31 = 1,054,333.89 : x
  2. Step 2: Convert to fraction form
    1,913,619.15/2,640,943.31 = 1,054,333.89/x
  3. Step 3: Cross multiply
    1,913,619.15x = 2,640,943.31 × 1,054,333.89
  4. Step 4: Simplify right side
    1,913,619.15x = 2,784,436,028,030.11
  5. Step 5: Solve for x
    x = 2,784,436,028,030.11/1,913,619.15
  6. Step 6: Final answer
    x = 1,455,062.79

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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.