Home / 1,938,378.63-2,674,962.60-1,078,920.48

Finding the Fourth Proportional to 1,938,378.63, 2,674,962.60 and 1,078,920.48

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Solution

The fourth proportional to 1,938,378.63, 2,674,962.60 and 1,078,920.48 is: 1,488,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,378.63 : 2,674,962.60 = 1,078,920.48 : x
  2. Step 2: Convert to fraction form
    1,938,378.63/2,674,962.60 = 1,078,920.48/x
  3. Step 3: Cross multiply
    1,938,378.63x = 2,674,962.60 × 1,078,920.48
  4. Step 4: Simplify right side
    1,938,378.63x = 2,886,071,932,374.05
  5. Step 5: Solve for x
    x = 2,886,071,932,374.05/1,938,378.63
  6. Step 6: Final answer
    x = 1,488,910.31

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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.