Home / 670,495.20-1,005,528.96-221,132.31

Finding the Fourth Proportional to 670,495.20, 1,005,528.96 and 221,132.31

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Solution

The fourth proportional to 670,495.20, 1,005,528.96 and 221,132.31 is: 331,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,495.20 : 1,005,528.96 = 221,132.31 : x
  2. Step 2: Convert to fraction form
    670,495.20/1,005,528.96 = 221,132.31/x
  3. Step 3: Cross multiply
    670,495.20x = 1,005,528.96 × 221,132.31
  4. Step 4: Simplify right side
    670,495.20x = 222,354,941,696.70
  5. Step 5: Solve for x
    x = 222,354,941,696.70/670,495.20
  6. Step 6: Final answer
    x = 331,627.94

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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.