Home / 669,973.37-1,005,098.57-220,721.86

Finding the Fourth Proportional to 669,973.37, 1,005,098.57 and 220,721.86

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Solution

The fourth proportional to 669,973.37, 1,005,098.57 and 220,721.86 is: 331,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,973.37 : 1,005,098.57 = 220,721.86 : x
  2. Step 2: Convert to fraction form
    669,973.37/1,005,098.57 = 220,721.86/x
  3. Step 3: Cross multiply
    669,973.37x = 1,005,098.57 × 220,721.86
  4. Step 4: Simplify right side
    669,973.37x = 221,847,219,724.64
  5. Step 5: Solve for x
    x = 221,847,219,724.64/669,973.37
  6. Step 6: Final answer
    x = 331,128.41

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1.5x scale

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.