Home / 685,521.45-1,027,604.21-325,058.22

Finding the Fourth Proportional to 685,521.45, 1,027,604.21 and 325,058.22

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Solution

The fourth proportional to 685,521.45, 1,027,604.21 and 325,058.22 is: 487,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,521.45 : 1,027,604.21 = 325,058.22 : x
  2. Step 2: Convert to fraction form
    685,521.45/1,027,604.21 = 325,058.22/x
  3. Step 3: Cross multiply
    685,521.45x = 1,027,604.21 × 325,058.22
  4. Step 4: Simplify right side
    685,521.45x = 334,031,193,741.82
  5. Step 5: Solve for x
    x = 334,031,193,741.82/685,521.45
  6. Step 6: Final answer
    x = 487,265.85

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1.5x scale

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.