Home / 1,422,791.80-1,963,499.33-778,211.96

Finding the Fourth Proportional to 1,422,791.80, 1,963,499.33 and 778,211.96

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Solution

The fourth proportional to 1,422,791.80, 1,963,499.33 and 778,211.96 is: 1,073,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,791.80 : 1,963,499.33 = 778,211.96 : x
  2. Step 2: Convert to fraction form
    1,422,791.80/1,963,499.33 = 778,211.96/x
  3. Step 3: Cross multiply
    1,422,791.80x = 1,963,499.33 × 778,211.96
  4. Step 4: Simplify right side
    1,422,791.80x = 1,528,018,654,186.02
  5. Step 5: Solve for x
    x = 1,528,018,654,186.02/1,422,791.80
  6. Step 6: Final answer
    x = 1,073,958.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.