Home / 797,830.22-1,105,663.60-782,690.78

Finding the Fourth Proportional to 797,830.22, 1,105,663.60 and 782,690.78

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Solution

The fourth proportional to 797,830.22, 1,105,663.60 and 782,690.78 is: 1,084,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,830.22 : 1,105,663.60 = 782,690.78 : x
  2. Step 2: Convert to fraction form
    797,830.22/1,105,663.60 = 782,690.78/x
  3. Step 3: Cross multiply
    797,830.22x = 1,105,663.60 × 782,690.78
  4. Step 4: Simplify right side
    797,830.22x = 865,392,705,501.61
  5. Step 5: Solve for x
    x = 865,392,705,501.61/797,830.22
  6. Step 6: Final answer
    x = 1,084,682.79

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.