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Finding the Fourth Proportional to 619,338.40, 929,007.60 and 494,922.40

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Solution

The fourth proportional to 619,338.40, 929,007.60 and 494,922.40 is: 742,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,338.40 : 929,007.60 = 494,922.40 : x
  2. Step 2: Convert to fraction form
    619,338.40/929,007.60 = 494,922.40/x
  3. Step 3: Cross multiply
    619,338.40x = 929,007.60 × 494,922.40
  4. Step 4: Simplify right side
    619,338.40x = 459,786,671,010.24
  5. Step 5: Solve for x
    x = 459,786,671,010.24/619,338.40
  6. Step 6: Final answer
    x = 742,383.60

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Similar ratio
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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.