Home / 769,113.80-1,153,670.70-325,824.20

Finding the Fourth Proportional to 769,113.80, 1,153,670.70 and 325,824.20

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Solution

The fourth proportional to 769,113.80, 1,153,670.70 and 325,824.20 is: 488,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,113.80 : 1,153,670.70 = 325,824.20 : x
  2. Step 2: Convert to fraction form
    769,113.80/1,153,670.70 = 325,824.20/x
  3. Step 3: Cross multiply
    769,113.80x = 1,153,670.70 × 325,824.20
  4. Step 4: Simplify right side
    769,113.80x = 375,893,832,890.94
  5. Step 5: Solve for x
    x = 375,893,832,890.94/769,113.80
  6. Step 6: Final answer
    x = 488,736.30

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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.