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Finding the Fourth Proportional to 702,915.60, 970,028.15 and 380,625.73

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Solution

The fourth proportional to 702,915.60, 970,028.15 and 380,625.73 is: 525,266.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,915.60 : 970,028.15 = 380,625.73 : x
  2. Step 2: Convert to fraction form
    702,915.60/970,028.15 = 380,625.73/x
  3. Step 3: Cross multiply
    702,915.60x = 970,028.15 × 380,625.73
  4. Step 4: Simplify right side
    702,915.60x = 369,217,672,714.30
  5. Step 5: Solve for x
    x = 369,217,672,714.30/702,915.60
  6. Step 6: Final answer
    x = 525,266.01

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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.