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Finding the Fourth Proportional to 585,005.60, 877,537.20 and 305,069.60

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Solution

The fourth proportional to 585,005.60, 877,537.20 and 305,069.60 is: 457,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,005.60 : 877,537.20 = 305,069.60 : x
  2. Step 2: Convert to fraction form
    585,005.60/877,537.20 = 305,069.60/x
  3. Step 3: Cross multiply
    585,005.60x = 877,537.20 × 305,069.60
  4. Step 4: Simplify right side
    585,005.60x = 267,709,922,589.12
  5. Step 5: Solve for x
    x = 267,709,922,589.12/585,005.60
  6. Step 6: Final answer
    x = 457,619.42

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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.