Home / 1,915,826.58-2,643,784.11-1,056,386.61

Finding the Fourth Proportional to 1,915,826.58, 2,643,784.11 and 1,056,386.61

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Solution

The fourth proportional to 1,915,826.58, 2,643,784.11 and 1,056,386.61 is: 1,457,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,826.58 : 2,643,784.11 = 1,056,386.61 : x
  2. Step 2: Convert to fraction form
    1,915,826.58/2,643,784.11 = 1,056,386.61/x
  3. Step 3: Cross multiply
    1,915,826.58x = 2,643,784.11 × 1,056,386.61
  4. Step 4: Simplify right side
    1,915,826.58x = 2,792,858,133,534.77
  5. Step 5: Solve for x
    x = 2,792,858,133,534.77/1,915,826.58
  6. Step 6: Final answer
    x = 1,457,782.33

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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.