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Finding the Fourth Proportional to 505,609.92, 755,133.12 and 458,130.96

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Solution

The fourth proportional to 505,609.92, 755,133.12 and 458,130.96 is: 684,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,609.92 : 755,133.12 = 458,130.96 : x
  2. Step 2: Convert to fraction form
    505,609.92/755,133.12 = 458,130.96/x
  3. Step 3: Cross multiply
    505,609.92x = 755,133.12 × 458,130.96
  4. Step 4: Simplify right side
    505,609.92x = 345,949,861,193.40
  5. Step 5: Solve for x
    x = 345,949,861,193.40/505,609.92
  6. Step 6: Final answer
    x = 684,222.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.