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Finding the Fourth Proportional to 501,701.82, 692,481.25 and 310,606.62

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Solution

The fourth proportional to 501,701.82, 692,481.25 and 310,606.62 is: 428,719.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,701.82 : 692,481.25 = 310,606.62 : x
  2. Step 2: Convert to fraction form
    501,701.82/692,481.25 = 310,606.62/x
  3. Step 3: Cross multiply
    501,701.82x = 692,481.25 × 310,606.62
  4. Step 4: Simplify right side
    501,701.82x = 215,089,256,236.95
  5. Step 5: Solve for x
    x = 215,089,256,236.95/501,701.82
  6. Step 6: Final answer
    x = 428,719.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.