Home / 412,739.82-619,109.76-272,465.64

Finding the Fourth Proportional to 412,739.82, 619,109.76 and 272,465.64

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Solution

The fourth proportional to 412,739.82, 619,109.76 and 272,465.64 is: 408,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,739.82 : 619,109.76 = 272,465.64 : x
  2. Step 2: Convert to fraction form
    412,739.82/619,109.76 = 272,465.64/x
  3. Step 3: Cross multiply
    412,739.82x = 619,109.76 × 272,465.64
  4. Step 4: Simplify right side
    412,739.82x = 168,686,136,988.65
  5. Step 5: Solve for x
    x = 168,686,136,988.65/412,739.82
  6. Step 6: Final answer
    x = 408,698.48

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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.