Home / 1,308,809.60-1,962,825.60-509,631.20

Finding the Fourth Proportional to 1,308,809.60, 1,962,825.60 and 509,631.20

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Solution

The fourth proportional to 1,308,809.60, 1,962,825.60 and 509,631.20 is: 764,295.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,809.60 : 1,962,825.60 = 509,631.20 : x
  2. Step 2: Convert to fraction form
    1,308,809.60/1,962,825.60 = 509,631.20/x
  3. Step 3: Cross multiply
    1,308,809.60x = 1,962,825.60 × 509,631.20
  4. Step 4: Simplify right side
    1,308,809.60x = 1,000,317,165,918.72
  5. Step 5: Solve for x
    x = 1,000,317,165,918.72/1,308,809.60
  6. Step 6: Final answer
    x = 764,295.41

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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.