Home / 1,556,259.51-2,147,803.23-912,220.80

Finding the Fourth Proportional to 1,556,259.51, 2,147,803.23 and 912,220.80

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Solution

The fourth proportional to 1,556,259.51, 2,147,803.23 and 912,220.80 is: 1,258,961.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,259.51 : 2,147,803.23 = 912,220.80 : x
  2. Step 2: Convert to fraction form
    1,556,259.51/2,147,803.23 = 912,220.80/x
  3. Step 3: Cross multiply
    1,556,259.51x = 2,147,803.23 × 912,220.80
  4. Step 4: Simplify right side
    1,556,259.51x = 1,959,270,780,713.18
  5. Step 5: Solve for x
    x = 1,959,270,780,713.18/1,556,259.51
  6. Step 6: Final answer
    x = 1,258,961.48

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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.