Home / 398,031.27-597,280.19-285,590.31

Finding the Fourth Proportional to 398,031.27, 597,280.19 and 285,590.31

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Solution

The fourth proportional to 398,031.27, 597,280.19 and 285,590.31 is: 428,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,031.27 : 597,280.19 = 285,590.31 : x
  2. Step 2: Convert to fraction form
    398,031.27/597,280.19 = 285,590.31/x
  3. Step 3: Cross multiply
    398,031.27x = 597,280.19 × 285,590.31
  4. Step 4: Simplify right side
    398,031.27x = 170,577,434,618.96
  5. Step 5: Solve for x
    x = 170,577,434,618.96/398,031.27
  6. Step 6: Final answer
    x = 428,552.85

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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.