Home / 487,913.21-673,305.76-270,131.59

Finding the Fourth Proportional to 487,913.21, 673,305.76 and 270,131.59

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Solution

The fourth proportional to 487,913.21, 673,305.76 and 270,131.59 is: 372,773.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,913.21 : 673,305.76 = 270,131.59 : x
  2. Step 2: Convert to fraction form
    487,913.21/673,305.76 = 270,131.59/x
  3. Step 3: Cross multiply
    487,913.21x = 673,305.76 × 270,131.59
  4. Step 4: Simplify right side
    487,913.21x = 181,881,155,504.96
  5. Step 5: Solve for x
    x = 181,881,155,504.96/487,913.21
  6. Step 6: Final answer
    x = 372,773.58

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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.