Home / 1,069,512.80-1,604,269.20-438,879.20

Finding the Fourth Proportional to 1,069,512.80, 1,604,269.20 and 438,879.20

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Solution

The fourth proportional to 1,069,512.80, 1,604,269.20 and 438,879.20 is: 658,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,512.80 : 1,604,269.20 = 438,879.20 : x
  2. Step 2: Convert to fraction form
    1,069,512.80/1,604,269.20 = 438,879.20/x
  3. Step 3: Cross multiply
    1,069,512.80x = 1,604,269.20 × 438,879.20
  4. Step 4: Simplify right side
    1,069,512.80x = 704,080,383,080.64
  5. Step 5: Solve for x
    x = 704,080,383,080.64/1,069,512.80
  6. Step 6: Final answer
    x = 658,318.80

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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.