Home / 1,231,009.29-1,698,786.34-714,890.09

Finding the Fourth Proportional to 1,231,009.29, 1,698,786.34 and 714,890.09

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Solution

The fourth proportional to 1,231,009.29, 1,698,786.34 and 714,890.09 is: 986,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,009.29 : 1,698,786.34 = 714,890.09 : x
  2. Step 2: Convert to fraction form
    1,231,009.29/1,698,786.34 = 714,890.09/x
  3. Step 3: Cross multiply
    1,231,009.29x = 1,698,786.34 × 714,890.09
  4. Step 4: Simplify right side
    1,231,009.29x = 1,214,445,521,953.11
  5. Step 5: Solve for x
    x = 1,214,445,521,953.11/1,231,009.29
  6. Step 6: Final answer
    x = 986,544.56

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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.