Home / 487,980.25-673,412.64-273,120.31

Finding the Fourth Proportional to 487,980.25, 673,412.64 and 273,120.31

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Solution

The fourth proportional to 487,980.25, 673,412.64 and 273,120.31 is: 376,905.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,980.25 : 673,412.64 = 273,120.31 : x
  2. Step 2: Convert to fraction form
    487,980.25/673,412.64 = 273,120.31/x
  3. Step 3: Cross multiply
    487,980.25x = 673,412.64 × 273,120.31
  4. Step 4: Simplify right side
    487,980.25x = 183,922,665,024.34
  5. Step 5: Solve for x
    x = 183,922,665,024.34/487,980.25
  6. Step 6: Final answer
    x = 376,905.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.