Home / 645,302.10-968,379.57-303,843.21

Finding the Fourth Proportional to 645,302.10, 968,379.57 and 303,843.21

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Solution

The fourth proportional to 645,302.10, 968,379.57 and 303,843.21 is: 455,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,302.10 : 968,379.57 = 303,843.21 : x
  2. Step 2: Convert to fraction form
    645,302.10/968,379.57 = 303,843.21/x
  3. Step 3: Cross multiply
    645,302.10x = 968,379.57 × 303,843.21
  4. Step 4: Simplify right side
    645,302.10x = 294,235,557,047.22
  5. Step 5: Solve for x
    x = 294,235,557,047.22/645,302.10
  6. Step 6: Final answer
    x = 455,965.60

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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.