Home / 1,127,826.15-1,556,256.12-644,422.59

Finding the Fourth Proportional to 1,127,826.15, 1,556,256.12 and 644,422.59

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Solution

The fourth proportional to 1,127,826.15, 1,556,256.12 and 644,422.59 is: 889,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,826.15 : 1,556,256.12 = 644,422.59 : x
  2. Step 2: Convert to fraction form
    1,127,826.15/1,556,256.12 = 644,422.59/x
  3. Step 3: Cross multiply
    1,127,826.15x = 1,556,256.12 × 644,422.59
  4. Step 4: Simplify right side
    1,127,826.15x = 1,002,886,599,553.75
  5. Step 5: Solve for x
    x = 1,002,886,599,553.75/1,127,826.15
  6. Step 6: Final answer
    x = 889,220.91

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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.