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Finding the Fourth Proportional to 572,580.60, 790,258.43 and 331,003.21

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Solution

The fourth proportional to 572,580.60, 790,258.43 and 331,003.21 is: 456,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,580.60 : 790,258.43 = 331,003.21 : x
  2. Step 2: Convert to fraction form
    572,580.60/790,258.43 = 331,003.21/x
  3. Step 3: Cross multiply
    572,580.60x = 790,258.43 × 331,003.21
  4. Step 4: Simplify right side
    572,580.60x = 261,578,075,531.26
  5. Step 5: Solve for x
    x = 261,578,075,531.26/572,580.60
  6. Step 6: Final answer
    x = 456,840.62

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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.