Home / 1,861,863.90-2,563,685.91-1,403,644.38

Finding the Fourth Proportional to 1,861,863.90, 2,563,685.91 and 1,403,644.38

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Solution

The fourth proportional to 1,861,863.90, 2,563,685.91 and 1,403,644.38 is: 1,932,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,863.90 : 2,563,685.91 = 1,403,644.38 : x
  2. Step 2: Convert to fraction form
    1,861,863.90/2,563,685.91 = 1,403,644.38/x
  3. Step 3: Cross multiply
    1,861,863.90x = 2,563,685.91 × 1,403,644.38
  4. Step 4: Simplify right side
    1,861,863.90x = 3,598,503,319,656.69
  5. Step 5: Solve for x
    x = 3,598,503,319,656.69/1,861,863.90
  6. Step 6: Final answer
    x = 1,932,742.41

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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.