Home / 1,294,485.84-1,786,451.76-721,530.72

Finding the Fourth Proportional to 1,294,485.84, 1,786,451.76 and 721,530.72

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Solution

The fourth proportional to 1,294,485.84, 1,786,451.76 and 721,530.72 is: 995,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,485.84 : 1,786,451.76 = 721,530.72 : x
  2. Step 2: Convert to fraction form
    1,294,485.84/1,786,451.76 = 721,530.72/x
  3. Step 3: Cross multiply
    1,294,485.84x = 1,786,451.76 × 721,530.72
  4. Step 4: Simplify right side
    1,294,485.84x = 1,288,979,824,638.07
  5. Step 5: Solve for x
    x = 1,288,979,824,638.07/1,294,485.84
  6. Step 6: Final answer
    x = 995,746.56

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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.