Home / 769,450.19-1,154,175.35-208,484.69

Finding the Fourth Proportional to 769,450.19, 1,154,175.35 and 208,484.69

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Solution

The fourth proportional to 769,450.19, 1,154,175.35 and 208,484.69 is: 312,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,450.19 : 1,154,175.35 = 208,484.69 : x
  2. Step 2: Convert to fraction form
    769,450.19/1,154,175.35 = 208,484.69/x
  3. Step 3: Cross multiply
    769,450.19x = 1,154,175.35 × 208,484.69
  4. Step 4: Simplify right side
    769,450.19x = 240,627,883,237.09
  5. Step 5: Solve for x
    x = 240,627,883,237.09/769,450.19
  6. Step 6: Final answer
    x = 312,727.05

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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.