Home / 1,556,759.55-2,148,279.47-912,608.78

Finding the Fourth Proportional to 1,556,759.55, 2,148,279.47 and 912,608.78

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Solution

The fourth proportional to 1,556,759.55, 2,148,279.47 and 912,608.78 is: 1,259,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,759.55 : 2,148,279.47 = 912,608.78 : x
  2. Step 2: Convert to fraction form
    1,556,759.55/2,148,279.47 = 912,608.78/x
  3. Step 3: Cross multiply
    1,556,759.55x = 2,148,279.47 × 912,608.78
  4. Step 4: Simplify right side
    1,556,759.55x = 1,960,538,694,333.59
  5. Step 5: Solve for x
    x = 1,960,538,694,333.59/1,556,759.55
  6. Step 6: Final answer
    x = 1,259,371.55

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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.