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Finding the Fourth Proportional to 559,969.80, 839,954.70 and 472,489.80

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Solution

The fourth proportional to 559,969.80, 839,954.70 and 472,489.80 is: 708,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,969.80 : 839,954.70 = 472,489.80 : x
  2. Step 2: Convert to fraction form
    559,969.80/839,954.70 = 472,489.80/x
  3. Step 3: Cross multiply
    559,969.80x = 839,954.70 × 472,489.80
  4. Step 4: Simplify right side
    559,969.80x = 396,870,028,212.06
  5. Step 5: Solve for x
    x = 396,870,028,212.06/559,969.80
  6. Step 6: Final answer
    x = 708,734.70

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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.