Home / 1,273,186.25-1,909,779.88-313,660.52

Finding the Fourth Proportional to 1,273,186.25, 1,909,779.88 and 313,660.52

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Solution

The fourth proportional to 1,273,186.25, 1,909,779.88 and 313,660.52 is: 470,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,186.25 : 1,909,779.88 = 313,660.52 : x
  2. Step 2: Convert to fraction form
    1,273,186.25/1,909,779.88 = 313,660.52/x
  3. Step 3: Cross multiply
    1,273,186.25x = 1,909,779.88 × 313,660.52
  4. Step 4: Simplify right side
    1,273,186.25x = 599,022,542,871.24
  5. Step 5: Solve for x
    x = 599,022,542,871.24/1,273,186.25
  6. Step 6: Final answer
    x = 470,490.90

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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.