Home / 1,296,295.25-1,788,887.59-715,518.56

Finding the Fourth Proportional to 1,296,295.25, 1,788,887.59 and 715,518.56

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Solution

The fourth proportional to 1,296,295.25, 1,788,887.59 and 715,518.56 is: 987,415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,295.25 : 1,788,887.59 = 715,518.56 : x
  2. Step 2: Convert to fraction form
    1,296,295.25/1,788,887.59 = 715,518.56/x
  3. Step 3: Cross multiply
    1,296,295.25x = 1,788,887.59 × 715,518.56
  4. Step 4: Simplify right side
    1,296,295.25x = 1,279,982,275,082.09
  5. Step 5: Solve for x
    x = 1,279,982,275,082.09/1,296,295.25
  6. Step 6: Final answer
    x = 987,415.70

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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.