Home / 2,719,106.70-4,078,530.45-921,813.90

Finding the Fourth Proportional to 2,719,106.70, 4,078,530.45 and 921,813.90

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Solution

The fourth proportional to 2,719,106.70, 4,078,530.45 and 921,813.90 is: 1,382,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719,106.70 : 4,078,530.45 = 921,813.90 : x
  2. Step 2: Convert to fraction form
    2,719,106.70/4,078,530.45 = 921,813.90/x
  3. Step 3: Cross multiply
    2,719,106.70x = 4,078,530.45 × 921,813.90
  4. Step 4: Simplify right side
    2,719,106.70x = 3,759,646,060,383.26
  5. Step 5: Solve for x
    x = 3,759,646,060,383.26/2,719,106.70
  6. Step 6: Final answer
    x = 1,382,676.91

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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.