Home / 707,936.88-1,062,060.72-520,379.76

Finding the Fourth Proportional to 707,936.88, 1,062,060.72 and 520,379.76

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Solution

The fourth proportional to 707,936.88, 1,062,060.72 and 520,379.76 is: 780,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,936.88 : 1,062,060.72 = 520,379.76 : x
  2. Step 2: Convert to fraction form
    707,936.88/1,062,060.72 = 520,379.76/x
  3. Step 3: Cross multiply
    707,936.88x = 1,062,060.72 × 520,379.76
  4. Step 4: Simplify right side
    707,936.88x = 552,674,902,579.03
  5. Step 5: Solve for x
    x = 552,674,902,579.03/707,936.88
  6. Step 6: Final answer
    x = 780,683.87

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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.