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Finding the Fourth Proportional to 525,964.60, 786,978.60 and 348,817.60

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Solution

The fourth proportional to 525,964.60, 786,978.60 and 348,817.60 is: 521,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,964.60 : 786,978.60 = 348,817.60 : x
  2. Step 2: Convert to fraction form
    525,964.60/786,978.60 = 348,817.60/x
  3. Step 3: Cross multiply
    525,964.60x = 786,978.60 × 348,817.60
  4. Step 4: Simplify right side
    525,964.60x = 274,511,986,503.36
  5. Step 5: Solve for x
    x = 274,511,986,503.36/525,964.60
  6. Step 6: Final answer
    x = 521,921.03

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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.