Home / 457,069.16-630,680.44-287,183

Finding the Fourth Proportional to 457,069.16, 630,680.44 and 287,183

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Solution

The fourth proportional to 457,069.16, 630,680.44 and 287,183 is: 396,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,069.16 : 630,680.44 = 287,183 : x
  2. Step 2: Convert to fraction form
    457,069.16/630,680.44 = 287,183/x
  3. Step 3: Cross multiply
    457,069.16x = 630,680.44 × 287,183
  4. Step 4: Simplify right side
    457,069.16x = 181,120,700,800.52
  5. Step 5: Solve for x
    x = 181,120,700,800.52/457,069.16
  6. Step 6: Final answer
    x = 396,265.42

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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.