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Finding the Fourth Proportional to 525,043.92, 724,615.02 and 321,230.64

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Solution

The fourth proportional to 525,043.92, 724,615.02 and 321,230.64 is: 443,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,043.92 : 724,615.02 = 321,230.64 : x
  2. Step 2: Convert to fraction form
    525,043.92/724,615.02 = 321,230.64/x
  3. Step 3: Cross multiply
    525,043.92x = 724,615.02 × 321,230.64
  4. Step 4: Simplify right side
    525,043.92x = 232,768,546,628.21
  5. Step 5: Solve for x
    x = 232,768,546,628.21/525,043.92
  6. Step 6: Final answer
    x = 443,331.57

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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.