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Finding the Fourth Proportional to 531,865.60, 797,401.60 and 321,459.20

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Solution

The fourth proportional to 531,865.60, 797,401.60 and 321,459.20 is: 481,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,865.60 : 797,401.60 = 321,459.20 : x
  2. Step 2: Convert to fraction form
    531,865.60/797,401.60 = 321,459.20/x
  3. Step 3: Cross multiply
    531,865.60x = 797,401.60 × 321,459.20
  4. Step 4: Simplify right side
    531,865.60x = 256,332,080,414.72
  5. Step 5: Solve for x
    x = 256,332,080,414.72/531,865.60
  6. Step 6: Final answer
    x = 481,948.97

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1.5x scale

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.