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Finding the Fourth Proportional to 585,499.47, 807,978.75 and 330,845.19

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Solution

The fourth proportional to 585,499.47, 807,978.75 and 330,845.19 is: 456,560.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,499.47 : 807,978.75 = 330,845.19 : x
  2. Step 2: Convert to fraction form
    585,499.47/807,978.75 = 330,845.19/x
  3. Step 3: Cross multiply
    585,499.47x = 807,978.75 × 330,845.19
  4. Step 4: Simplify right side
    585,499.47x = 267,315,883,059.71
  5. Step 5: Solve for x
    x = 267,315,883,059.71/585,499.47
  6. Step 6: Final answer
    x = 456,560.42

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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.