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Finding the Fourth Proportional to 507,225.54, 699,992.34 and 280,871.04

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Solution

The fourth proportional to 507,225.54, 699,992.34 and 280,871.04 is: 387,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,225.54 : 699,992.34 = 280,871.04 : x
  2. Step 2: Convert to fraction form
    507,225.54/699,992.34 = 280,871.04/x
  3. Step 3: Cross multiply
    507,225.54x = 699,992.34 × 280,871.04
  4. Step 4: Simplify right side
    507,225.54x = 196,607,576,527.83
  5. Step 5: Solve for x
    x = 196,607,576,527.83/507,225.54
  6. Step 6: Final answer
    x = 387,613.72

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1.5x scale

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.