Home / 457,070.04-686,047.32-220,579.20

Finding the Fourth Proportional to 457,070.04, 686,047.32 and 220,579.20

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Solution

The fourth proportional to 457,070.04, 686,047.32 and 220,579.20 is: 331,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,070.04 : 686,047.32 = 220,579.20 : x
  2. Step 2: Convert to fraction form
    457,070.04/686,047.32 = 220,579.20/x
  3. Step 3: Cross multiply
    457,070.04x = 686,047.32 × 220,579.20
  4. Step 4: Simplify right side
    457,070.04x = 151,327,769,007.74
  5. Step 5: Solve for x
    x = 151,327,769,007.74/457,070.04
  6. Step 6: Final answer
    x = 331,082.23

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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.