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Finding the Fourth Proportional to 511,544.60, 767,316.90 and 432,812.60

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Solution

The fourth proportional to 511,544.60, 767,316.90 and 432,812.60 is: 649,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,544.60 : 767,316.90 = 432,812.60 : x
  2. Step 2: Convert to fraction form
    511,544.60/767,316.90 = 432,812.60/x
  3. Step 3: Cross multiply
    511,544.60x = 767,316.90 × 432,812.60
  4. Step 4: Simplify right side
    511,544.60x = 332,104,422,512.94
  5. Step 5: Solve for x
    x = 332,104,422,512.94/511,544.60
  6. Step 6: Final answer
    x = 649,218.90

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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.