Home / 694,170.21-1,041,385.66-315,117.54

Finding the Fourth Proportional to 694,170.21, 1,041,385.66 and 315,117.54

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Solution

The fourth proportional to 694,170.21, 1,041,385.66 and 315,117.54 is: 472,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,170.21 : 1,041,385.66 = 315,117.54 : x
  2. Step 2: Convert to fraction form
    694,170.21/1,041,385.66 = 315,117.54/x
  3. Step 3: Cross multiply
    694,170.21x = 1,041,385.66 × 315,117.54
  4. Step 4: Simplify right side
    694,170.21x = 328,158,891,464.18
  5. Step 5: Solve for x
    x = 328,158,891,464.18/694,170.21
  6. Step 6: Final answer
    x = 472,735.49

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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.