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Finding the Fourth Proportional to 494,430.30, 743,200.65 and 485,099.10

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Solution

The fourth proportional to 494,430.30, 743,200.65 and 485,099.10 is: 729,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,430.30 : 743,200.65 = 485,099.10 : x
  2. Step 2: Convert to fraction form
    494,430.30/743,200.65 = 485,099.10/x
  3. Step 3: Cross multiply
    494,430.30x = 743,200.65 × 485,099.10
  4. Step 4: Simplify right side
    494,430.30x = 360,525,966,434.42
  5. Step 5: Solve for x
    x = 360,525,966,434.42/494,430.30
  6. Step 6: Final answer
    x = 729,174.50

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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.