Home / 603,386.18-905,065.26-303,786.32

Finding the Fourth Proportional to 603,386.18, 905,065.26 and 303,786.32

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Solution

The fourth proportional to 603,386.18, 905,065.26 and 303,786.32 is: 455,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,386.18 : 905,065.26 = 303,786.32 : x
  2. Step 2: Convert to fraction form
    603,386.18/905,065.26 = 303,786.32/x
  3. Step 3: Cross multiply
    603,386.18x = 905,065.26 × 303,786.32
  4. Step 4: Simplify right side
    603,386.18x = 274,946,444,695.24
  5. Step 5: Solve for x
    x = 274,946,444,695.24/603,386.18
  6. Step 6: Final answer
    x = 455,672.43

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Double scale
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Similar ratio
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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.