Home / 1,127,826.90-1,556,257.16-644,423.34

Finding the Fourth Proportional to 1,127,826.90, 1,556,257.16 and 644,423.34

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Solution

The fourth proportional to 1,127,826.90, 1,556,257.16 and 644,423.34 is: 889,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,826.90 : 1,556,257.16 = 644,423.34 : x
  2. Step 2: Convert to fraction form
    1,127,826.90/1,556,257.16 = 644,423.34/x
  3. Step 3: Cross multiply
    1,127,826.90x = 1,556,257.16 × 644,423.34
  4. Step 4: Simplify right side
    1,127,826.90x = 1,002,888,433,724.00
  5. Step 5: Solve for x
    x = 1,002,888,433,724.00/1,127,826.90
  6. Step 6: Final answer
    x = 889,221.95

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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.