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Finding the Fourth Proportional to 519,209.51, 716,518.46 and 304,504.43

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Solution

The fourth proportional to 519,209.51, 716,518.46 and 304,504.43 is: 420,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,209.51 : 716,518.46 = 304,504.43 : x
  2. Step 2: Convert to fraction form
    519,209.51/716,518.46 = 304,504.43/x
  3. Step 3: Cross multiply
    519,209.51x = 716,518.46 × 304,504.43
  4. Step 4: Simplify right side
    519,209.51x = 218,183,043,724.26
  5. Step 5: Solve for x
    x = 218,183,043,724.26/519,209.51
  6. Step 6: Final answer
    x = 420,221.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.