Home / 1,296,388.98-1,789,016.94-715,612.32

Finding the Fourth Proportional to 1,296,388.98, 1,789,016.94 and 715,612.32

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Solution

The fourth proportional to 1,296,388.98, 1,789,016.94 and 715,612.32 is: 987,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,388.98 : 1,789,016.94 = 715,612.32 : x
  2. Step 2: Convert to fraction form
    1,296,388.98/1,789,016.94 = 715,612.32/x
  3. Step 3: Cross multiply
    1,296,388.98x = 1,789,016.94 × 715,612.32
  4. Step 4: Simplify right side
    1,296,388.98x = 1,280,242,562,952.70
  5. Step 5: Solve for x
    x = 1,280,242,562,952.70/1,296,388.98
  6. Step 6: Final answer
    x = 987,545.08

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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.