Home / 1,419,076.80-2,128,615.20-744,897.60

Finding the Fourth Proportional to 1,419,076.80, 2,128,615.20 and 744,897.60

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Solution

The fourth proportional to 1,419,076.80, 2,128,615.20 and 744,897.60 is: 1,117,346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,076.80 : 2,128,615.20 = 744,897.60 : x
  2. Step 2: Convert to fraction form
    1,419,076.80/2,128,615.20 = 744,897.60/x
  3. Step 3: Cross multiply
    1,419,076.80x = 2,128,615.20 × 744,897.60
  4. Step 4: Simplify right side
    1,419,076.80x = 1,585,600,353,803.52
  5. Step 5: Solve for x
    x = 1,585,600,353,803.52/1,419,076.80
  6. Step 6: Final answer
    x = 1,117,346.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.