Home / 1,294,924.40-1,786,912.08-721,930.40

Finding the Fourth Proportional to 1,294,924.40, 1,786,912.08 and 721,930.40

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Solution

The fourth proportional to 1,294,924.40, 1,786,912.08 and 721,930.40 is: 996,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,924.40 : 1,786,912.08 = 721,930.40 : x
  2. Step 2: Convert to fraction form
    1,294,924.40/1,786,912.08 = 721,930.40/x
  3. Step 3: Cross multiply
    1,294,924.40x = 1,786,912.08 × 721,930.40
  4. Step 4: Simplify right side
    1,294,924.40x = 1,290,026,152,679.23
  5. Step 5: Solve for x
    x = 1,290,026,152,679.23/1,294,924.40
  6. Step 6: Final answer
    x = 996,217.35

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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.