Home / 1,296,295.50-1,788,887.94-715,518.82

Finding the Fourth Proportional to 1,296,295.50, 1,788,887.94 and 715,518.82

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Solution

The fourth proportional to 1,296,295.50, 1,788,887.94 and 715,518.82 is: 987,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,295.50 : 1,788,887.94 = 715,518.82 : x
  2. Step 2: Convert to fraction form
    1,296,295.50/1,788,887.94 = 715,518.82/x
  3. Step 3: Cross multiply
    1,296,295.50x = 1,788,887.94 × 715,518.82
  4. Step 4: Simplify right side
    1,296,295.50x = 1,279,982,987,941.03
  5. Step 5: Solve for x
    x = 1,279,982,987,941.03/1,296,295.50
  6. Step 6: Final answer
    x = 987,416.05

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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.