Home / 949,790.21-1,310,749.49-520,107.89

Finding the Fourth Proportional to 949,790.21, 1,310,749.49 and 520,107.89

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Solution

The fourth proportional to 949,790.21, 1,310,749.49 and 520,107.89 is: 717,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,790.21 : 1,310,749.49 = 520,107.89 : x
  2. Step 2: Convert to fraction form
    949,790.21/1,310,749.49 = 520,107.89/x
  3. Step 3: Cross multiply
    949,790.21x = 1,310,749.49 × 520,107.89
  4. Step 4: Simplify right side
    949,790.21x = 681,731,146,309.00
  5. Step 5: Solve for x
    x = 681,731,146,309.00/949,790.21
  6. Step 6: Final answer
    x = 717,770.24

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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.