Home / 860,370.78-1,288,780.65-504,303.42

Finding the Fourth Proportional to 860,370.78, 1,288,780.65 and 504,303.42

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Solution

The fourth proportional to 860,370.78, 1,288,780.65 and 504,303.42 is: 755,414.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,370.78 : 1,288,780.65 = 504,303.42 : x
  2. Step 2: Convert to fraction form
    860,370.78/1,288,780.65 = 504,303.42/x
  3. Step 3: Cross multiply
    860,370.78x = 1,288,780.65 × 504,303.42
  4. Step 4: Simplify right side
    860,370.78x = 649,936,489,424.82
  5. Step 5: Solve for x
    x = 649,936,489,424.82/860,370.78
  6. Step 6: Final answer
    x = 755,414.41

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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.