Home / 2,289,005.20-3,433,507.80-1,392,205.60

Finding the Fourth Proportional to 2,289,005.20, 3,433,507.80 and 1,392,205.60

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Solution

The fourth proportional to 2,289,005.20, 3,433,507.80 and 1,392,205.60 is: 2,088,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289,005.20 : 3,433,507.80 = 1,392,205.60 : x
  2. Step 2: Convert to fraction form
    2,289,005.20/3,433,507.80 = 1,392,205.60/x
  3. Step 3: Cross multiply
    2,289,005.20x = 3,433,507.80 × 1,392,205.60
  4. Step 4: Simplify right side
    2,289,005.20x = 4,780,148,786,803.68
  5. Step 5: Solve for x
    x = 4,780,148,786,803.68/2,289,005.20
  6. Step 6: Final answer
    x = 2,088,308.40

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1.5x scale

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.