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Finding the Fourth Proportional to 485,601.76, 727,954 and 307,570.40

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Solution

The fourth proportional to 485,601.76, 727,954 and 307,570.40 is: 461,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,601.76 : 727,954 = 307,570.40 : x
  2. Step 2: Convert to fraction form
    485,601.76/727,954 = 307,570.40/x
  3. Step 3: Cross multiply
    485,601.76x = 727,954 × 307,570.40
  4. Step 4: Simplify right side
    485,601.76x = 223,897,102,961.60
  5. Step 5: Solve for x
    x = 223,897,102,961.60/485,601.76
  6. Step 6: Final answer
    x = 461,071.44

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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.