Home / 705,091.60-1,057,819.65-305,640.10

Finding the Fourth Proportional to 705,091.60, 1,057,819.65 and 305,640.10

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Solution

The fourth proportional to 705,091.60, 1,057,819.65 and 305,640.10 is: 458,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,091.60 : 1,057,819.65 = 305,640.10 : x
  2. Step 2: Convert to fraction form
    705,091.60/1,057,819.65 = 305,640.10/x
  3. Step 3: Cross multiply
    705,091.60x = 1,057,819.65 × 305,640.10
  4. Step 4: Simplify right side
    705,091.60x = 323,312,103,607.97
  5. Step 5: Solve for x
    x = 323,312,103,607.97/705,091.60
  6. Step 6: Final answer
    x = 458,539.15

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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.