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Finding the Fourth Proportional to 445,804.20, 615,090.78 and 264,365.28

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Solution

The fourth proportional to 445,804.20, 615,090.78 and 264,365.28 is: 364,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,804.20 : 615,090.78 = 264,365.28 : x
  2. Step 2: Convert to fraction form
    445,804.20/615,090.78 = 264,365.28/x
  3. Step 3: Cross multiply
    445,804.20x = 615,090.78 × 264,365.28
  4. Step 4: Simplify right side
    445,804.20x = 162,608,646,280.12
  5. Step 5: Solve for x
    x = 162,608,646,280.12/445,804.20
  6. Step 6: Final answer
    x = 364,753.51

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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.