Home / 1,425,009.42-2,138,954.46-1,263,959.40

Finding the Fourth Proportional to 1,425,009.42, 2,138,954.46 and 1,263,959.40

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Solution

The fourth proportional to 1,425,009.42, 2,138,954.46 and 1,263,959.40 is: 1,897,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,009.42 : 2,138,954.46 = 1,263,959.40 : x
  2. Step 2: Convert to fraction form
    1,425,009.42/2,138,954.46 = 1,263,959.40/x
  3. Step 3: Cross multiply
    1,425,009.42x = 2,138,954.46 × 1,263,959.40
  4. Step 4: Simplify right side
    1,425,009.42x = 2,703,551,595,888.92
  5. Step 5: Solve for x
    x = 2,703,551,595,888.92/1,425,009.42
  6. Step 6: Final answer
    x = 1,897,216.65

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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.