Home / 1,219,310.37-1,830,100.37-620,719.65

Finding the Fourth Proportional to 1,219,310.37, 1,830,100.37 and 620,719.65

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Solution

The fourth proportional to 1,219,310.37, 1,830,100.37 and 620,719.65 is: 931,657.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,310.37 : 1,830,100.37 = 620,719.65 : x
  2. Step 2: Convert to fraction form
    1,219,310.37/1,830,100.37 = 620,719.65/x
  3. Step 3: Cross multiply
    1,219,310.37x = 1,830,100.37 × 620,719.65
  4. Step 4: Simplify right side
    1,219,310.37x = 1,135,979,258,027.67
  5. Step 5: Solve for x
    x = 1,135,979,258,027.67/1,219,310.37
  6. Step 6: Final answer
    x = 931,657.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.