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Finding the Fourth Proportional to 451,820.84, 623,008.87 and 290,453.04

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Solution

The fourth proportional to 451,820.84, 623,008.87 and 290,453.04 is: 400,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,820.84 : 623,008.87 = 290,453.04 : x
  2. Step 2: Convert to fraction form
    451,820.84/623,008.87 = 290,453.04/x
  3. Step 3: Cross multiply
    451,820.84x = 623,008.87 × 290,453.04
  4. Step 4: Simplify right side
    451,820.84x = 180,954,819,512.33
  5. Step 5: Solve for x
    x = 180,954,819,512.33/451,820.84
  6. Step 6: Final answer
    x = 400,501.27

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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.