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Finding the Fourth Proportional to 288,580.43, 432,858.35 and 281,822.60

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Solution

The fourth proportional to 288,580.43, 432,858.35 and 281,822.60 is: 422,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,580.43 : 432,858.35 = 281,822.60 : x
  2. Step 2: Convert to fraction form
    288,580.43/432,858.35 = 281,822.60/x
  3. Step 3: Cross multiply
    288,580.43x = 432,858.35 × 281,822.60
  4. Step 4: Simplify right side
    288,580.43x = 121,989,265,628.71
  5. Step 5: Solve for x
    x = 121,989,265,628.71/288,580.43
  6. Step 6: Final answer
    x = 422,721.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.