Home / 907,827-1,361,346.60-308,627.20

Finding the Fourth Proportional to 907,827, 1,361,346.60 and 308,627.20

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Solution

The fourth proportional to 907,827, 1,361,346.60 and 308,627.20 is: 462,806.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,827 : 1,361,346.60 = 308,627.20 : x
  2. Step 2: Convert to fraction form
    907,827/1,361,346.60 = 308,627.20/x
  3. Step 3: Cross multiply
    907,827x = 1,361,346.60 × 308,627.20
  4. Step 4: Simplify right side
    907,827x = 420,148,589,387.52
  5. Step 5: Solve for x
    x = 420,148,589,387.52/907,827
  6. Step 6: Final answer
    x = 462,806.89

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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.