Home / 1,294,401-1,786,334.52-721,445.28

Finding the Fourth Proportional to 1,294,401, 1,786,334.52 and 721,445.28

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Solution

The fourth proportional to 1,294,401, 1,786,334.52 and 721,445.28 is: 995,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,401 : 1,786,334.52 = 721,445.28 : x
  2. Step 2: Convert to fraction form
    1,294,401/1,786,334.52 = 721,445.28/x
  3. Step 3: Cross multiply
    1,294,401x = 1,786,334.52 × 721,445.28
  4. Step 4: Simplify right side
    1,294,401x = 1,288,742,607,955.07
  5. Step 5: Solve for x
    x = 1,288,742,607,955.07/1,294,401
  6. Step 6: Final answer
    x = 995,628.56

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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.