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Finding the Fourth Proportional to 491,774.40, 737,078.40 and 441,619.20

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Solution

The fourth proportional to 491,774.40, 737,078.40 and 441,619.20 is: 661,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,774.40 : 737,078.40 = 441,619.20 : x
  2. Step 2: Convert to fraction form
    491,774.40/737,078.40 = 441,619.20/x
  3. Step 3: Cross multiply
    491,774.40x = 737,078.40 × 441,619.20
  4. Step 4: Simplify right side
    491,774.40x = 325,507,973,345.28
  5. Step 5: Solve for x
    x = 325,507,973,345.28/491,774.40
  6. Step 6: Final answer
    x = 661,905.08

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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.