Home / 1,296,298.08-1,788,891.48-715,521.40

Finding the Fourth Proportional to 1,296,298.08, 1,788,891.48 and 715,521.40

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Solution

The fourth proportional to 1,296,298.08, 1,788,891.48 and 715,521.40 is: 987,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,298.08 : 1,788,891.48 = 715,521.40 : x
  2. Step 2: Convert to fraction form
    1,296,298.08/1,788,891.48 = 715,521.40/x
  3. Step 3: Cross multiply
    1,296,298.08x = 1,788,891.48 × 715,521.40
  4. Step 4: Simplify right side
    1,296,298.08x = 1,279,990,131,745.44
  5. Step 5: Solve for x
    x = 1,279,990,131,745.44/1,296,298.08
  6. Step 6: Final answer
    x = 987,419.60

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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.