Home / 1,911,954-2,638,672.20-1,052,688.72

Finding the Fourth Proportional to 1,911,954, 2,638,672.20 and 1,052,688.72

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Solution

The fourth proportional to 1,911,954, 2,638,672.20 and 1,052,688.72 is: 1,452,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,954 : 2,638,672.20 = 1,052,688.72 : x
  2. Step 2: Convert to fraction form
    1,911,954/2,638,672.20 = 1,052,688.72/x
  3. Step 3: Cross multiply
    1,911,954x = 2,638,672.20 × 1,052,688.72
  4. Step 4: Simplify right side
    1,911,954x = 2,777,700,460,717.58
  5. Step 5: Solve for x
    x = 2,777,700,460,717.58/1,911,954
  6. Step 6: Final answer
    x = 1,452,807.16

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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.