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Finding the Fourth Proportional to 397,607.64, 549,029.72 and 368,759.36

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Solution

The fourth proportional to 397,607.64, 549,029.72 and 368,759.36 is: 509,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,607.64 : 549,029.72 = 368,759.36 : x
  2. Step 2: Convert to fraction form
    397,607.64/549,029.72 = 368,759.36/x
  3. Step 3: Cross multiply
    397,607.64x = 549,029.72 × 368,759.36
  4. Step 4: Simplify right side
    397,607.64x = 202,459,848,168.18
  5. Step 5: Solve for x
    x = 202,459,848,168.18/397,607.64
  6. Step 6: Final answer
    x = 509,195.07

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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.