Home / 1,127,697.54-1,556,208.09-644,258.76

Finding the Fourth Proportional to 1,127,697.54, 1,556,208.09 and 644,258.76

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Solution

The fourth proportional to 1,127,697.54, 1,556,208.09 and 644,258.76 is: 889,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,697.54 : 1,556,208.09 = 644,258.76 : x
  2. Step 2: Convert to fraction form
    1,127,697.54/1,556,208.09 = 644,258.76/x
  3. Step 3: Cross multiply
    1,127,697.54x = 1,556,208.09 × 644,258.76
  4. Step 4: Simplify right side
    1,127,697.54x = 1,002,600,694,365.37
  5. Step 5: Solve for x
    x = 1,002,600,694,365.37/1,127,697.54
  6. Step 6: Final answer
    x = 889,068.80

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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.