Home / 1,128,303.90-1,556,680.70-644,526.54

Finding the Fourth Proportional to 1,128,303.90, 1,556,680.70 and 644,526.54

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Solution

The fourth proportional to 1,128,303.90, 1,556,680.70 and 644,526.54 is: 889,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,303.90 : 1,556,680.70 = 644,526.54 : x
  2. Step 2: Convert to fraction form
    1,128,303.90/1,556,680.70 = 644,526.54/x
  3. Step 3: Cross multiply
    1,128,303.90x = 1,556,680.70 × 644,526.54
  4. Step 4: Simplify right side
    1,128,303.90x = 1,003,322,027,067.09
  5. Step 5: Solve for x
    x = 1,003,322,027,067.09/1,128,303.90
  6. Step 6: Final answer
    x = 889,230.31

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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.