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Finding the Fourth Proportional to 602,777.76, 831,906.96 and 348,128.64

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Solution

The fourth proportional to 602,777.76, 831,906.96 and 348,128.64 is: 480,460.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,777.76 : 831,906.96 = 348,128.64 : x
  2. Step 2: Convert to fraction form
    602,777.76/831,906.96 = 348,128.64/x
  3. Step 3: Cross multiply
    602,777.76x = 831,906.96 × 348,128.64
  4. Step 4: Simplify right side
    602,777.76x = 289,610,638,591.33
  5. Step 5: Solve for x
    x = 289,610,638,591.33/602,777.76
  6. Step 6: Final answer
    x = 480,460.06

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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.