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Finding the Fourth Proportional to 518,605.30, 777,906.60 and 144,628.30

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Solution

The fourth proportional to 518,605.30, 777,906.60 and 144,628.30 is: 216,942.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,605.30 : 777,906.60 = 144,628.30 : x
  2. Step 2: Convert to fraction form
    518,605.30/777,906.60 = 144,628.30/x
  3. Step 3: Cross multiply
    518,605.30x = 777,906.60 × 144,628.30
  4. Step 4: Simplify right side
    518,605.30x = 112,507,309,116.78
  5. Step 5: Solve for x
    x = 112,507,309,116.78/518,605.30
  6. Step 6: Final answer
    x = 216,942.07

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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.