Home / 394,721.42-592,271.69-309,953.30

Finding the Fourth Proportional to 394,721.42, 592,271.69 and 309,953.30

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Solution

The fourth proportional to 394,721.42, 592,271.69 and 309,953.30 is: 465,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,721.42 : 592,271.69 = 309,953.30 : x
  2. Step 2: Convert to fraction form
    394,721.42/592,271.69 = 309,953.30/x
  3. Step 3: Cross multiply
    394,721.42x = 592,271.69 × 309,953.30
  4. Step 4: Simplify right side
    394,721.42x = 183,576,560,300.95
  5. Step 5: Solve for x
    x = 183,576,560,300.95/394,721.42
  6. Step 6: Final answer
    x = 465,078.80

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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.