Home / 1,296,381.51-1,789,006.83-715,604.98

Finding the Fourth Proportional to 1,296,381.51, 1,789,006.83 and 715,604.98

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Solution

The fourth proportional to 1,296,381.51, 1,789,006.83 and 715,604.98 is: 987,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,381.51 : 1,789,006.83 = 715,604.98 : x
  2. Step 2: Convert to fraction form
    1,296,381.51/1,789,006.83 = 715,604.98/x
  3. Step 3: Cross multiply
    1,296,381.51x = 1,789,006.83 × 715,604.98
  4. Step 4: Simplify right side
    1,296,381.51x = 1,280,222,195,013.00
  5. Step 5: Solve for x
    x = 1,280,222,195,013.00/1,296,381.51
  6. Step 6: Final answer
    x = 987,535.06

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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.