Home / 1,315,468.56-1,815,349-711,856.72

Finding the Fourth Proportional to 1,315,468.56, 1,815,349 and 711,856.72

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Solution

The fourth proportional to 1,315,468.56, 1,815,349 and 711,856.72 is: 982,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,468.56 : 1,815,349 = 711,856.72 : x
  2. Step 2: Convert to fraction form
    1,315,468.56/1,815,349 = 711,856.72/x
  3. Step 3: Cross multiply
    1,315,468.56x = 1,815,349 × 711,856.72
  4. Step 4: Simplify right side
    1,315,468.56x = 1,292,268,384,795.28
  5. Step 5: Solve for x
    x = 1,292,268,384,795.28/1,315,468.56
  6. Step 6: Final answer
    x = 982,363.57

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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.