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Finding the Fourth Proportional to 613,403.60, 846,495.24 and 345,131.60

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Solution

The fourth proportional to 613,403.60, 846,495.24 and 345,131.60 is: 476,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,403.60 : 846,495.24 = 345,131.60 : x
  2. Step 2: Convert to fraction form
    613,403.60/846,495.24 = 345,131.60/x
  3. Step 3: Cross multiply
    613,403.60x = 846,495.24 × 345,131.60
  4. Step 4: Simplify right side
    613,403.60x = 292,152,256,573.58
  5. Step 5: Solve for x
    x = 292,152,256,573.58/613,403.60
  6. Step 6: Final answer
    x = 476,280.64

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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.