Home / 1,296,347.98-1,788,960.25-715,571.23

Finding the Fourth Proportional to 1,296,347.98, 1,788,960.25 and 715,571.23

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Solution

The fourth proportional to 1,296,347.98, 1,788,960.25 and 715,571.23 is: 987,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,347.98 : 1,788,960.25 = 715,571.23 : x
  2. Step 2: Convert to fraction form
    1,296,347.98/1,788,960.25 = 715,571.23/x
  3. Step 3: Cross multiply
    1,296,347.98x = 1,788,960.25 × 715,571.23
  4. Step 4: Simplify right side
    1,296,347.98x = 1,280,128,484,724.68
  5. Step 5: Solve for x
    x = 1,280,128,484,724.68/1,296,347.98
  6. Step 6: Final answer
    x = 987,488.32

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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.