Home / 457,164.20-684,434.10-280,017.20

Finding the Fourth Proportional to 457,164.20, 684,434.10 and 280,017.20

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Solution

The fourth proportional to 457,164.20, 684,434.10 and 280,017.20 is: 419,222.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,164.20 : 684,434.10 = 280,017.20 : x
  2. Step 2: Convert to fraction form
    457,164.20/684,434.10 = 280,017.20/x
  3. Step 3: Cross multiply
    457,164.20x = 684,434.10 × 280,017.20
  4. Step 4: Simplify right side
    457,164.20x = 191,653,320,266.52
  5. Step 5: Solve for x
    x = 191,653,320,266.52/457,164.20
  6. Step 6: Final answer
    x = 419,222.07

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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.