Home / 1,912,143.14-2,638,948.16-1,427,867.52

Finding the Fourth Proportional to 1,912,143.14, 2,638,948.16 and 1,427,867.52

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Solution

The fourth proportional to 1,912,143.14, 2,638,948.16 and 1,427,867.52 is: 1,970,599.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,143.14 : 2,638,948.16 = 1,427,867.52 : x
  2. Step 2: Convert to fraction form
    1,912,143.14/2,638,948.16 = 1,427,867.52/x
  3. Step 3: Cross multiply
    1,912,143.14x = 2,638,948.16 × 1,427,867.52
  4. Step 4: Simplify right side
    1,912,143.14x = 3,768,068,357,488.43
  5. Step 5: Solve for x
    x = 3,768,068,357,488.43/1,912,143.14
  6. Step 6: Final answer
    x = 1,970,599.53

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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.