Home / 1,128,208.60-1,556,918.80-611,961.21

Finding the Fourth Proportional to 1,128,208.60, 1,556,918.80 and 611,961.21

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Solution

The fourth proportional to 1,128,208.60, 1,556,918.80 and 611,961.21 is: 844,501.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,208.60 : 1,556,918.80 = 611,961.21 : x
  2. Step 2: Convert to fraction form
    1,128,208.60/1,556,918.80 = 611,961.21/x
  3. Step 3: Cross multiply
    1,128,208.60x = 1,556,918.80 × 611,961.21
  4. Step 4: Simplify right side
    1,128,208.60x = 952,773,909,659.94
  5. Step 5: Solve for x
    x = 952,773,909,659.94/1,128,208.60
  6. Step 6: Final answer
    x = 844,501.55

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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.