Home / 1,218,702.85-1,681,789.36-674,826.96

Finding the Fourth Proportional to 1,218,702.85, 1,681,789.36 and 674,826.96

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Solution

The fourth proportional to 1,218,702.85, 1,681,789.36 and 674,826.96 is: 931,249.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,702.85 : 1,681,789.36 = 674,826.96 : x
  2. Step 2: Convert to fraction form
    1,218,702.85/1,681,789.36 = 674,826.96/x
  3. Step 3: Cross multiply
    1,218,702.85x = 1,681,789.36 × 674,826.96
  4. Step 4: Simplify right side
    1,218,702.85x = 1,134,916,801,169.15
  5. Step 5: Solve for x
    x = 1,134,916,801,169.15/1,218,702.85
  6. Step 6: Final answer
    x = 931,249.81

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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.