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Finding the Fourth Proportional to 624,236.76, 861,449.64 and 352,316.04

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Solution

The fourth proportional to 624,236.76, 861,449.64 and 352,316.04 is: 486,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,236.76 : 861,449.64 = 352,316.04 : x
  2. Step 2: Convert to fraction form
    624,236.76/861,449.64 = 352,316.04/x
  3. Step 3: Cross multiply
    624,236.76x = 861,449.64 × 352,316.04
  4. Step 4: Simplify right side
    624,236.76x = 303,502,525,824.23
  5. Step 5: Solve for x
    x = 303,502,525,824.23/624,236.76
  6. Step 6: Final answer
    x = 486,197.78

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Double scale
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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.