Home / 778,872.15-1,091,995.65-778,872.15

Finding the Fourth Proportional to 778,872.15, 1,091,995.65 and 778,872.15

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Solution

The fourth proportional to 778,872.15, 1,091,995.65 and 778,872.15 is: 1,091,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,872.15 : 1,091,995.65 = 778,872.15 : x
  2. Step 2: Convert to fraction form
    778,872.15/1,091,995.65 = 778,872.15/x
  3. Step 3: Cross multiply
    778,872.15x = 1,091,995.65 × 778,872.15
  4. Step 4: Simplify right side
    778,872.15x = 850,524,999,706.15
  5. Step 5: Solve for x
    x = 850,524,999,706.15/778,872.15
  6. Step 6: Final answer
    x = 1,091,995.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.