Home / 676,779.35-1,015,200.15-277,139.86

Finding the Fourth Proportional to 676,779.35, 1,015,200.15 and 277,139.86

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Solution

The fourth proportional to 676,779.35, 1,015,200.15 and 277,139.86 is: 415,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,779.35 : 1,015,200.15 = 277,139.86 : x
  2. Step 2: Convert to fraction form
    676,779.35/1,015,200.15 = 277,139.86/x
  3. Step 3: Cross multiply
    676,779.35x = 1,015,200.15 × 277,139.86
  4. Step 4: Simplify right side
    676,779.35x = 281,352,431,135.12
  5. Step 5: Solve for x
    x = 281,352,431,135.12/676,779.35
  6. Step 6: Final answer
    x = 415,722.54

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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.