Home / 1,294,416.96-1,786,356.68-721,461.28

Finding the Fourth Proportional to 1,294,416.96, 1,786,356.68 and 721,461.28

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Solution

The fourth proportional to 1,294,416.96, 1,786,356.68 and 721,461.28 is: 995,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,416.96 : 1,786,356.68 = 721,461.28 : x
  2. Step 2: Convert to fraction form
    1,294,416.96/1,786,356.68 = 721,461.28/x
  3. Step 3: Cross multiply
    1,294,416.96x = 1,786,356.68 × 721,461.28
  4. Step 4: Simplify right side
    1,294,416.96x = 1,288,787,176,889.35
  5. Step 5: Solve for x
    x = 1,288,787,176,889.35/1,294,416.96
  6. Step 6: Final answer
    x = 995,650.72

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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.