Home / 457,052.04-686,021.40-220,561.20

Finding the Fourth Proportional to 457,052.04, 686,021.40 and 220,561.20

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Solution

The fourth proportional to 457,052.04, 686,021.40 and 220,561.20 is: 331,055.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,052.04 : 686,021.40 = 220,561.20 : x
  2. Step 2: Convert to fraction form
    457,052.04/686,021.40 = 220,561.20/x
  3. Step 3: Cross multiply
    457,052.04x = 686,021.40 × 220,561.20
  4. Step 4: Simplify right side
    457,052.04x = 151,309,703,209.68
  5. Step 5: Solve for x
    x = 151,309,703,209.68/457,052.04
  6. Step 6: Final answer
    x = 331,055.74

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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.