Home / 687,596.91-1,031,606.52-328,226.34

Finding the Fourth Proportional to 687,596.91, 1,031,606.52 and 328,226.34

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Solution

The fourth proportional to 687,596.91, 1,031,606.52 and 328,226.34 is: 492,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,596.91 : 1,031,606.52 = 328,226.34 : x
  2. Step 2: Convert to fraction form
    687,596.91/1,031,606.52 = 328,226.34/x
  3. Step 3: Cross multiply
    687,596.91x = 1,031,606.52 × 328,226.34
  4. Step 4: Simplify right side
    687,596.91x = 338,600,432,379.74
  5. Step 5: Solve for x
    x = 338,600,432,379.74/687,596.91
  6. Step 6: Final answer
    x = 492,440.31

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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.