Home / 1,425,010.42-2,138,955.96-1,263,960.40

Finding the Fourth Proportional to 1,425,010.42, 2,138,955.96 and 1,263,960.40

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Solution

The fourth proportional to 1,425,010.42, 2,138,955.96 and 1,263,960.40 is: 1,897,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,010.42 : 2,138,955.96 = 1,263,960.40 : x
  2. Step 2: Convert to fraction form
    1,425,010.42/2,138,955.96 = 1,263,960.40/x
  3. Step 3: Cross multiply
    1,425,010.42x = 2,138,955.96 × 1,263,960.40
  4. Step 4: Simplify right side
    1,425,010.42x = 2,703,555,630,783.98
  5. Step 5: Solve for x
    x = 2,703,555,630,783.98/1,425,010.42
  6. Step 6: Final answer
    x = 1,897,218.15

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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.