Home / 1,294,420.37-1,786,308.39-721,496.84

Finding the Fourth Proportional to 1,294,420.37, 1,786,308.39 and 721,496.84

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Solution

The fourth proportional to 1,294,420.37, 1,786,308.39 and 721,496.84 is: 995,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,420.37 : 1,786,308.39 = 721,496.84 : x
  2. Step 2: Convert to fraction form
    1,294,420.37/1,786,308.39 = 721,496.84/x
  3. Step 3: Cross multiply
    1,294,420.37x = 1,786,308.39 × 721,496.84
  4. Step 4: Simplify right side
    1,294,420.37x = 1,288,815,849,718.95
  5. Step 5: Solve for x
    x = 1,288,815,849,718.95/1,294,420.37
  6. Step 6: Final answer
    x = 995,670.25

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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.