Home / 705,091.10-1,057,818.90-305,639.60

Finding the Fourth Proportional to 705,091.10, 1,057,818.90 and 305,639.60

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Solution

The fourth proportional to 705,091.10, 1,057,818.90 and 305,639.60 is: 458,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,091.10 : 1,057,818.90 = 305,639.60 : x
  2. Step 2: Convert to fraction form
    705,091.10/1,057,818.90 = 305,639.60/x
  3. Step 3: Cross multiply
    705,091.10x = 1,057,818.90 × 305,639.60
  4. Step 4: Simplify right side
    705,091.10x = 323,311,345,468.44
  5. Step 5: Solve for x
    x = 323,311,345,468.44/705,091.10
  6. Step 6: Final answer
    x = 458,538.40

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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.