Home / 1,294,202.80-1,786,017.36-721,223.38

Finding the Fourth Proportional to 1,294,202.80, 1,786,017.36 and 721,223.38

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Solution

The fourth proportional to 1,294,202.80, 1,786,017.36 and 721,223.38 is: 995,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,202.80 : 1,786,017.36 = 721,223.38 : x
  2. Step 2: Convert to fraction form
    1,294,202.80/1,786,017.36 = 721,223.38/x
  3. Step 3: Cross multiply
    1,294,202.80x = 1,786,017.36 × 721,223.38
  4. Step 4: Simplify right side
    1,294,202.80x = 1,288,117,477,117.88
  5. Step 5: Solve for x
    x = 1,288,117,477,117.88/1,294,202.80
  6. Step 6: Final answer
    x = 995,298.01

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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.