Home / 1,219,310.36-1,830,100.37-620,719.64

Finding the Fourth Proportional to 1,219,310.36, 1,830,100.37 and 620,719.64

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Solution

The fourth proportional to 1,219,310.36, 1,830,100.37 and 620,719.64 is: 931,657.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,310.36 : 1,830,100.37 = 620,719.64 : x
  2. Step 2: Convert to fraction form
    1,219,310.36/1,830,100.37 = 620,719.64/x
  3. Step 3: Cross multiply
    1,219,310.36x = 1,830,100.37 × 620,719.64
  4. Step 4: Simplify right side
    1,219,310.36x = 1,135,979,242,830.27
  5. Step 5: Solve for x
    x = 1,135,979,242,830.27/1,219,310.36
  6. Step 6: Final answer
    x = 931,657.17

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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.