Home / 670,498.20-1,005,533.46-221,135.31

Finding the Fourth Proportional to 670,498.20, 1,005,533.46 and 221,135.31

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Solution

The fourth proportional to 670,498.20, 1,005,533.46 and 221,135.31 is: 331,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,498.20 : 1,005,533.46 = 221,135.31 : x
  2. Step 2: Convert to fraction form
    670,498.20/1,005,533.46 = 221,135.31/x
  3. Step 3: Cross multiply
    670,498.20x = 1,005,533.46 × 221,135.31
  4. Step 4: Simplify right side
    670,498.20x = 222,358,953,392.47
  5. Step 5: Solve for x
    x = 222,358,953,392.47/670,498.20
  6. Step 6: Final answer
    x = 331,632.44

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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.