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Finding the Fourth Proportional to 451,720.64, 624,106.69 and 384,448.52

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Solution

The fourth proportional to 451,720.64, 624,106.69 and 384,448.52 is: 531,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,720.64 : 624,106.69 = 384,448.52 : x
  2. Step 2: Convert to fraction form
    451,720.64/624,106.69 = 384,448.52/x
  3. Step 3: Cross multiply
    451,720.64x = 624,106.69 × 384,448.52
  4. Step 4: Simplify right side
    451,720.64x = 239,936,892,693.45
  5. Step 5: Solve for x
    x = 239,936,892,693.45/451,720.64
  6. Step 6: Final answer
    x = 531,162.12

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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.