Home / 487,986.26-673,420.91-273,126.30

Finding the Fourth Proportional to 487,986.26, 673,420.91 and 273,126.30

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Solution

The fourth proportional to 487,986.26, 673,420.91 and 273,126.30 is: 376,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,986.26 : 673,420.91 = 273,126.30 : x
  2. Step 2: Convert to fraction form
    487,986.26/673,420.91 = 273,126.30/x
  3. Step 3: Cross multiply
    487,986.26x = 673,420.91 × 273,126.30
  4. Step 4: Simplify right side
    487,986.26x = 183,928,960,125.30
  5. Step 5: Solve for x
    x = 183,928,960,125.30/487,986.26
  6. Step 6: Final answer
    x = 376,914.22

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1.5x scale

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.