Home / 1,443,881.39-1,992,579.81-790,496.38

Finding the Fourth Proportional to 1,443,881.39, 1,992,579.81 and 790,496.38

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Solution

The fourth proportional to 1,443,881.39, 1,992,579.81 and 790,496.38 is: 1,090,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,881.39 : 1,992,579.81 = 790,496.38 : x
  2. Step 2: Convert to fraction form
    1,443,881.39/1,992,579.81 = 790,496.38/x
  3. Step 3: Cross multiply
    1,443,881.39x = 1,992,579.81 × 790,496.38
  4. Step 4: Simplify right side
    1,443,881.39x = 1,575,127,131,750.59
  5. Step 5: Solve for x
    x = 1,575,127,131,750.59/1,443,881.39
  6. Step 6: Final answer
    x = 1,090,897.87

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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.