Home / 1,191,639.78-1,640,862.84-1,026,893.07

Finding the Fourth Proportional to 1,191,639.78, 1,640,862.84 and 1,026,893.07

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Solution

The fourth proportional to 1,191,639.78, 1,640,862.84 and 1,026,893.07 is: 1,414,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,639.78 : 1,640,862.84 = 1,026,893.07 : x
  2. Step 2: Convert to fraction form
    1,191,639.78/1,640,862.84 = 1,026,893.07/x
  3. Step 3: Cross multiply
    1,191,639.78x = 1,640,862.84 × 1,026,893.07
  4. Step 4: Simplify right side
    1,191,639.78x = 1,684,990,679,216.52
  5. Step 5: Solve for x
    x = 1,684,990,679,216.52/1,191,639.78
  6. Step 6: Final answer
    x = 1,414,010.10

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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.