Home / 2,758,955.70-4,138,608.48-865,771.86

Finding the Fourth Proportional to 2,758,955.70, 4,138,608.48 and 865,771.86

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Solution

The fourth proportional to 2,758,955.70, 4,138,608.48 and 865,771.86 is: 1,298,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,955.70 : 4,138,608.48 = 865,771.86 : x
  2. Step 2: Convert to fraction form
    2,758,955.70/4,138,608.48 = 865,771.86/x
  3. Step 3: Cross multiply
    2,758,955.70x = 4,138,608.48 × 865,771.86
  4. Step 4: Simplify right side
    2,758,955.70x = 3,583,090,761,541.37
  5. Step 5: Solve for x
    x = 3,583,090,761,541.37/2,758,955.70
  6. Step 6: Final answer
    x = 1,298,712.68

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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.