Home / 1,225,980.89-1,691,827.13-709,756.66

Finding the Fourth Proportional to 1,225,980.89, 1,691,827.13 and 709,756.66

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Solution

The fourth proportional to 1,225,980.89, 1,691,827.13 and 709,756.66 is: 979,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,980.89 : 1,691,827.13 = 709,756.66 : x
  2. Step 2: Convert to fraction form
    1,225,980.89/1,691,827.13 = 709,756.66/x
  3. Step 3: Cross multiply
    1,225,980.89x = 1,691,827.13 × 709,756.66
  4. Step 4: Simplify right side
    1,225,980.89x = 1,200,785,561,078.27
  5. Step 5: Solve for x
    x = 1,200,785,561,078.27/1,225,980.89
  6. Step 6: Final answer
    x = 979,448.84

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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.