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Finding the Fourth Proportional to 371,743.60, 521,490.80 and 371,743.60

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Solution

The fourth proportional to 371,743.60, 521,490.80 and 371,743.60 is: 521,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,743.60 : 521,490.80 = 371,743.60 : x
  2. Step 2: Convert to fraction form
    371,743.60/521,490.80 = 371,743.60/x
  3. Step 3: Cross multiply
    371,743.60x = 521,490.80 × 371,743.60
  4. Step 4: Simplify right side
    371,743.60x = 193,860,867,358.88
  5. Step 5: Solve for x
    x = 193,860,867,358.88/371,743.60
  6. Step 6: Final answer
    x = 521,490.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.