Home / 1,127,440.80-1,555,931.86-668,826.90

Finding the Fourth Proportional to 1,127,440.80, 1,555,931.86 and 668,826.90

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Solution

The fourth proportional to 1,127,440.80, 1,555,931.86 and 668,826.90 is: 923,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,440.80 : 1,555,931.86 = 668,826.90 : x
  2. Step 2: Convert to fraction form
    1,127,440.80/1,555,931.86 = 668,826.90/x
  3. Step 3: Cross multiply
    1,127,440.80x = 1,555,931.86 × 668,826.90
  4. Step 4: Simplify right side
    1,127,440.80x = 1,040,649,082,535.03
  5. Step 5: Solve for x
    x = 1,040,649,082,535.03/1,127,440.80
  6. Step 6: Final answer
    x = 923,018.83

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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.