Home / 1,296,375.48-1,788,998.31-715,598.82

Finding the Fourth Proportional to 1,296,375.48, 1,788,998.31 and 715,598.82

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Solution

The fourth proportional to 1,296,375.48, 1,788,998.31 and 715,598.82 is: 987,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,375.48 : 1,788,998.31 = 715,598.82 : x
  2. Step 2: Convert to fraction form
    1,296,375.48/1,788,998.31 = 715,598.82/x
  3. Step 3: Cross multiply
    1,296,375.48x = 1,788,998.31 × 715,598.82
  4. Step 4: Simplify right side
    1,296,375.48x = 1,280,205,079,617.99
  5. Step 5: Solve for x
    x = 1,280,205,079,617.99/1,296,375.48
  6. Step 6: Final answer
    x = 987,526.45

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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.