Home / 457,073.04-686,051.82-220,582.20

Finding the Fourth Proportional to 457,073.04, 686,051.82 and 220,582.20

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Solution

The fourth proportional to 457,073.04, 686,051.82 and 220,582.20 is: 331,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,073.04 : 686,051.82 = 220,582.20 : x
  2. Step 2: Convert to fraction form
    457,073.04/686,051.82 = 220,582.20/x
  3. Step 3: Cross multiply
    457,073.04x = 686,051.82 × 220,582.20
  4. Step 4: Simplify right side
    457,073.04x = 151,330,819,769.60
  5. Step 5: Solve for x
    x = 151,330,819,769.60/457,073.04
  6. Step 6: Final answer
    x = 331,086.73

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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.