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Finding the Fourth Proportional to 525,019.60, 788,112.60 and 325,565.20

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Solution

The fourth proportional to 525,019.60, 788,112.60 and 325,565.20 is: 488,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,019.60 : 788,112.60 = 325,565.20 : x
  2. Step 2: Convert to fraction form
    525,019.60/788,112.60 = 325,565.20/x
  3. Step 3: Cross multiply
    525,019.60x = 788,112.60 × 325,565.20
  4. Step 4: Simplify right side
    525,019.60x = 256,582,036,241.52
  5. Step 5: Solve for x
    x = 256,582,036,241.52/525,019.60
  6. Step 6: Final answer
    x = 488,709.44

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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.