Home / 782,714.85-1,079,669.07-517,499.57

Finding the Fourth Proportional to 782,714.85, 1,079,669.07 and 517,499.57

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Solution

The fourth proportional to 782,714.85, 1,079,669.07 and 517,499.57 is: 713,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,714.85 : 1,079,669.07 = 517,499.57 : x
  2. Step 2: Convert to fraction form
    782,714.85/1,079,669.07 = 517,499.57/x
  3. Step 3: Cross multiply
    782,714.85x = 1,079,669.07 × 517,499.57
  4. Step 4: Simplify right side
    782,714.85x = 558,728,274,068.96
  5. Step 5: Solve for x
    x = 558,728,274,068.96/782,714.85
  6. Step 6: Final answer
    x = 713,833.75

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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.