Home / 1,431,433.72-1,975,382.56-819,595.92

Finding the Fourth Proportional to 1,431,433.72, 1,975,382.56 and 819,595.92

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Solution

The fourth proportional to 1,431,433.72, 1,975,382.56 and 819,595.92 is: 1,131,044.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,433.72 : 1,975,382.56 = 819,595.92 : x
  2. Step 2: Convert to fraction form
    1,431,433.72/1,975,382.56 = 819,595.92/x
  3. Step 3: Cross multiply
    1,431,433.72x = 1,975,382.56 × 819,595.92
  4. Step 4: Simplify right side
    1,431,433.72x = 1,619,015,486,615.16
  5. Step 5: Solve for x
    x = 1,619,015,486,615.16/1,431,433.72
  6. Step 6: Final answer
    x = 1,131,044.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.