Home / 769,550.40-1,154,325.60-208,584.90

Finding the Fourth Proportional to 769,550.40, 1,154,325.60 and 208,584.90

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Solution

The fourth proportional to 769,550.40, 1,154,325.60 and 208,584.90 is: 312,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,550.40 : 1,154,325.60 = 208,584.90 : x
  2. Step 2: Convert to fraction form
    769,550.40/1,154,325.60 = 208,584.90/x
  3. Step 3: Cross multiply
    769,550.40x = 1,154,325.60 × 208,584.90
  4. Step 4: Simplify right side
    769,550.40x = 240,774,889,843.44
  5. Step 5: Solve for x
    x = 240,774,889,843.44/769,550.40
  6. Step 6: Final answer
    x = 312,877.35

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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.