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Finding the Fourth Proportional to 479,684.64, 661,986.96 and 264,855.20

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Solution

The fourth proportional to 479,684.64, 661,986.96 and 264,855.20 is: 365,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,684.64 : 661,986.96 = 264,855.20 : x
  2. Step 2: Convert to fraction form
    479,684.64/661,986.96 = 264,855.20/x
  3. Step 3: Cross multiply
    479,684.64x = 661,986.96 × 264,855.20
  4. Step 4: Simplify right side
    479,684.64x = 175,330,688,688.19
  5. Step 5: Solve for x
    x = 175,330,688,688.19/479,684.64
  6. Step 6: Final answer
    x = 365,512.41

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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.