Home / 1,280,365.94-1,766,940.86-707,443.22

Finding the Fourth Proportional to 1,280,365.94, 1,766,940.86 and 707,443.22

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Solution

The fourth proportional to 1,280,365.94, 1,766,940.86 and 707,443.22 is: 976,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,365.94 : 1,766,940.86 = 707,443.22 : x
  2. Step 2: Convert to fraction form
    1,280,365.94/1,766,940.86 = 707,443.22/x
  3. Step 3: Cross multiply
    1,280,365.94x = 1,766,940.86 × 707,443.22
  4. Step 4: Simplify right side
    1,280,365.94x = 1,250,010,337,733.93
  5. Step 5: Solve for x
    x = 1,250,010,337,733.93/1,280,365.94
  6. Step 6: Final answer
    x = 976,291.46

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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.