Home / 773,719,674.86-1,067,728,603.41-421,294,821.75

Finding the Fourth Proportional to 773,719,674.86, 1,067,728,603.41 and 421,294,821.75

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Solution

The fourth proportional to 773,719,674.86, 1,067,728,603.41 and 421,294,821.75 is: 581,384,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,719,674.86 : 1,067,728,603.41 = 421,294,821.75 : x
  2. Step 2: Convert to fraction form
    773,719,674.86/1,067,728,603.41 = 421,294,821.75/x
  3. Step 3: Cross multiply
    773,719,674.86x = 1,067,728,603.41 × 421,294,821.75
  4. Step 4: Simplify right side
    773,719,674.86x = 449,828,531,650,992,384
  5. Step 5: Solve for x
    x = 449,828,531,650,992,384/773,719,674.86
  6. Step 6: Final answer
    x = 581,384,377.66

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1.5x scale

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.