Home / 705,273.40-1,057,910.10-438,896.80

Finding the Fourth Proportional to 705,273.40, 1,057,910.10 and 438,896.80

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Solution

The fourth proportional to 705,273.40, 1,057,910.10 and 438,896.80 is: 658,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,273.40 : 1,057,910.10 = 438,896.80 : x
  2. Step 2: Convert to fraction form
    705,273.40/1,057,910.10 = 438,896.80/x
  3. Step 3: Cross multiply
    705,273.40x = 1,057,910.10 × 438,896.80
  4. Step 4: Simplify right side
    705,273.40x = 464,313,357,577.68
  5. Step 5: Solve for x
    x = 464,313,357,577.68/705,273.40
  6. Step 6: Final answer
    x = 658,345.20

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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.