Home / 1,315,457.05-1,815,336.26-711,845.05

Finding the Fourth Proportional to 1,315,457.05, 1,815,336.26 and 711,845.05

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Solution

The fourth proportional to 1,315,457.05, 1,815,336.26 and 711,845.05 is: 982,349.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,457.05 : 1,815,336.26 = 711,845.05 : x
  2. Step 2: Convert to fraction form
    1,315,457.05/1,815,336.26 = 711,845.05/x
  3. Step 3: Cross multiply
    1,315,457.05x = 1,815,336.26 × 711,845.05
  4. Step 4: Simplify right side
    1,315,457.05x = 1,292,238,131,845.69
  5. Step 5: Solve for x
    x = 1,292,238,131,845.69/1,315,457.05
  6. Step 6: Final answer
    x = 982,349.16

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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.