Home / 1,938,391.28-2,674,920.42-1,078,929.44

Finding the Fourth Proportional to 1,938,391.28, 2,674,920.42 and 1,078,929.44

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Solution

The fourth proportional to 1,938,391.28, 2,674,920.42 and 1,078,929.44 is: 1,488,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,391.28 : 2,674,920.42 = 1,078,929.44 : x
  2. Step 2: Convert to fraction form
    1,938,391.28/2,674,920.42 = 1,078,929.44/x
  3. Step 3: Cross multiply
    1,938,391.28x = 2,674,920.42 × 1,078,929.44
  4. Step 4: Simplify right side
    1,938,391.28x = 2,886,050,390,795.16
  5. Step 5: Solve for x
    x = 2,886,050,390,795.16/1,938,391.28
  6. Step 6: Final answer
    x = 1,488,889.48

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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.