Home / 905,448.45-1,357,328.44-305,990.40

Finding the Fourth Proportional to 905,448.45, 1,357,328.44 and 305,990.40

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Solution

The fourth proportional to 905,448.45, 1,357,328.44 and 305,990.40 is: 458,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,448.45 : 1,357,328.44 = 305,990.40 : x
  2. Step 2: Convert to fraction form
    905,448.45/1,357,328.44 = 305,990.40/x
  3. Step 3: Cross multiply
    905,448.45x = 1,357,328.44 × 305,990.40
  4. Step 4: Simplify right side
    905,448.45x = 415,329,472,286.98
  5. Step 5: Solve for x
    x = 415,329,472,286.98/905,448.45
  6. Step 6: Final answer
    x = 458,700.30

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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.