Home / 1,911,711.42-2,638,140.83-1,052,253.18

Finding the Fourth Proportional to 1,911,711.42, 2,638,140.83 and 1,052,253.18

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Solution

The fourth proportional to 1,911,711.42, 2,638,140.83 and 1,052,253.18 is: 1,452,097.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,711.42 : 2,638,140.83 = 1,052,253.18 : x
  2. Step 2: Convert to fraction form
    1,911,711.42/2,638,140.83 = 1,052,253.18/x
  3. Step 3: Cross multiply
    1,911,711.42x = 2,638,140.83 × 1,052,253.18
  4. Step 4: Simplify right side
    1,911,711.42x = 2,775,992,077,655.34
  5. Step 5: Solve for x
    x = 2,775,992,077,655.34/1,911,711.42
  6. Step 6: Final answer
    x = 1,452,097.87

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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.