Home / 685,031.37-1,028,170.34-365,454.17

Finding the Fourth Proportional to 685,031.37, 1,028,170.34 and 365,454.17

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Solution

The fourth proportional to 685,031.37, 1,028,170.34 and 365,454.17 is: 548,513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,031.37 : 1,028,170.34 = 365,454.17 : x
  2. Step 2: Convert to fraction form
    685,031.37/1,028,170.34 = 365,454.17/x
  3. Step 3: Cross multiply
    685,031.37x = 1,028,170.34 × 365,454.17
  4. Step 4: Simplify right side
    685,031.37x = 375,749,138,223.32
  5. Step 5: Solve for x
    x = 375,749,138,223.32/685,031.37
  6. Step 6: Final answer
    x = 548,513.77

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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.