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Finding the Fourth Proportional to 525,235.05, 724,814.46 and 321,270.98

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Solution

The fourth proportional to 525,235.05, 724,814.46 and 321,270.98 is: 443,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,235.05 : 724,814.46 = 321,270.98 : x
  2. Step 2: Convert to fraction form
    525,235.05/724,814.46 = 321,270.98/x
  3. Step 3: Cross multiply
    525,235.05x = 724,814.46 × 321,270.98
  4. Step 4: Simplify right side
    525,235.05x = 232,861,848,258.30
  5. Step 5: Solve for x
    x = 232,861,848,258.30/525,235.05
  6. Step 6: Final answer
    x = 443,347.88

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1.5x scale

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.