Home / 1,294,890.40-1,786,956.24-721,966.24

Finding the Fourth Proportional to 1,294,890.40, 1,786,956.24 and 721,966.24

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Solution

The fourth proportional to 1,294,890.40, 1,786,956.24 and 721,966.24 is: 996,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,890.40 : 1,786,956.24 = 721,966.24 : x
  2. Step 2: Convert to fraction form
    1,294,890.40/1,786,956.24 = 721,966.24/x
  3. Step 3: Cross multiply
    1,294,890.40x = 1,786,956.24 × 721,966.24
  4. Step 4: Simplify right side
    1,294,890.40x = 1,290,122,077,637.34
  5. Step 5: Solve for x
    x = 1,290,122,077,637.34/1,294,890.40
  6. Step 6: Final answer
    x = 996,317.59

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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.