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Finding the Fourth Proportional to 525,287.60, 788,514.60 and 325,833.20

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Solution

The fourth proportional to 525,287.60, 788,514.60 and 325,833.20 is: 489,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,287.60 : 788,514.60 = 325,833.20 : x
  2. Step 2: Convert to fraction form
    525,287.60/788,514.60 = 325,833.20/x
  3. Step 3: Cross multiply
    525,287.60x = 788,514.60 × 325,833.20
  4. Step 4: Simplify right side
    525,287.60x = 256,924,235,364.72
  5. Step 5: Solve for x
    x = 256,924,235,364.72/525,287.60
  6. Step 6: Final answer
    x = 489,111.56

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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.