Home / 1,247,820.80-1,721,992.77-674,860.82

Finding the Fourth Proportional to 1,247,820.80, 1,721,992.77 and 674,860.82

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Solution

The fourth proportional to 1,247,820.80, 1,721,992.77 and 674,860.82 is: 931,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,820.80 : 1,721,992.77 = 674,860.82 : x
  2. Step 2: Convert to fraction form
    1,247,820.80/1,721,992.77 = 674,860.82/x
  3. Step 3: Cross multiply
    1,247,820.80x = 1,721,992.77 × 674,860.82
  4. Step 4: Simplify right side
    1,247,820.80x = 1,162,105,444,186.31
  5. Step 5: Solve for x
    x = 1,162,105,444,186.31/1,247,820.80
  6. Step 6: Final answer
    x = 931,307.96

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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.