Home / 1,296,555.46-1,789,345.49-715,890.56

Finding the Fourth Proportional to 1,296,555.46, 1,789,345.49 and 715,890.56

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Solution

The fourth proportional to 1,296,555.46, 1,789,345.49 and 715,890.56 is: 987,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,555.46 : 1,789,345.49 = 715,890.56 : x
  2. Step 2: Convert to fraction form
    1,296,555.46/1,789,345.49 = 715,890.56/x
  3. Step 3: Cross multiply
    1,296,555.46x = 1,789,345.49 × 715,890.56
  4. Step 4: Simplify right side
    1,296,555.46x = 1,280,975,532,343.39
  5. Step 5: Solve for x
    x = 1,280,975,532,343.39/1,296,555.46
  6. Step 6: Final answer
    x = 987,983.60

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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.