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Finding the Fourth Proportional to 479,576.04, 661,815 and 264,716.15

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Solution

The fourth proportional to 479,576.04, 661,815 and 264,716.15 is: 365,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,576.04 : 661,815 = 264,716.15 : x
  2. Step 2: Convert to fraction form
    479,576.04/661,815 = 264,716.15/x
  3. Step 3: Cross multiply
    479,576.04x = 661,815 × 264,716.15
  4. Step 4: Simplify right side
    479,576.04x = 175,193,115,503.18
  5. Step 5: Solve for x
    x = 175,193,115,503.18/479,576.04
  6. Step 6: Final answer
    x = 365,308.32

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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.