Home / 1,283,921.89-1,771,790.40-710,949.76

Finding the Fourth Proportional to 1,283,921.89, 1,771,790.40 and 710,949.76

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Solution

The fourth proportional to 1,283,921.89, 1,771,790.40 and 710,949.76 is: 981,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,921.89 : 1,771,790.40 = 710,949.76 : x
  2. Step 2: Convert to fraction form
    1,283,921.89/1,771,790.40 = 710,949.76/x
  3. Step 3: Cross multiply
    1,283,921.89x = 1,771,790.40 × 710,949.76
  4. Step 4: Simplify right side
    1,283,921.89x = 1,259,653,959,650.30
  5. Step 5: Solve for x
    x = 1,259,653,959,650.30/1,283,921.89
  6. Step 6: Final answer
    x = 981,098.59

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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.