Home / 708,131.20-1,059,604.80-521,507.20

Finding the Fourth Proportional to 708,131.20, 1,059,604.80 and 521,507.20

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Solution

The fourth proportional to 708,131.20, 1,059,604.80 and 521,507.20 is: 780,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,131.20 : 1,059,604.80 = 521,507.20 : x
  2. Step 2: Convert to fraction form
    708,131.20/1,059,604.80 = 521,507.20/x
  3. Step 3: Cross multiply
    708,131.20x = 1,059,604.80 × 521,507.20
  4. Step 4: Simplify right side
    708,131.20x = 552,591,532,354.56
  5. Step 5: Solve for x
    x = 552,591,532,354.56/708,131.20
  6. Step 6: Final answer
    x = 780,351.91

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Double scale
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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.