Home / 397,600.16-548,680.65-220,784.63

Finding the Fourth Proportional to 397,600.16, 548,680.65 and 220,784.63

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Solution

The fourth proportional to 397,600.16, 548,680.65 and 220,784.63 is: 304,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,600.16 : 548,680.65 = 220,784.63 : x
  2. Step 2: Convert to fraction form
    397,600.16/548,680.65 = 220,784.63/x
  3. Step 3: Cross multiply
    397,600.16x = 548,680.65 × 220,784.63
  4. Step 4: Simplify right side
    397,600.16x = 121,140,254,298.41
  5. Step 5: Solve for x
    x = 121,140,254,298.41/397,600.16
  6. Step 6: Final answer
    x = 304,678.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.