Home / 1,419,315.40-2,128,973.10-422,043.40

Finding the Fourth Proportional to 1,419,315.40, 2,128,973.10 and 422,043.40

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Solution

The fourth proportional to 1,419,315.40, 2,128,973.10 and 422,043.40 is: 633,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,315.40 : 2,128,973.10 = 422,043.40 : x
  2. Step 2: Convert to fraction form
    1,419,315.40/2,128,973.10 = 422,043.40/x
  3. Step 3: Cross multiply
    1,419,315.40x = 2,128,973.10 × 422,043.40
  4. Step 4: Simplify right side
    1,419,315.40x = 898,519,045,632.54
  5. Step 5: Solve for x
    x = 898,519,045,632.54/1,419,315.40
  6. Step 6: Final answer
    x = 633,065.10

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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.