Home / 691,123.98-1,035,997.06-330,629.83

Finding the Fourth Proportional to 691,123.98, 1,035,997.06 and 330,629.83

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Solution

The fourth proportional to 691,123.98, 1,035,997.06 and 330,629.83 is: 495,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,123.98 : 1,035,997.06 = 330,629.83 : x
  2. Step 2: Convert to fraction form
    691,123.98/1,035,997.06 = 330,629.83/x
  3. Step 3: Cross multiply
    691,123.98x = 1,035,997.06 × 330,629.83
  4. Step 4: Simplify right side
    691,123.98x = 342,531,534,859.15
  5. Step 5: Solve for x
    x = 342,531,534,859.15/691,123.98
  6. Step 6: Final answer
    x = 495,615.18

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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.