Home / 1,315,443-1,815,312.96-711,831

Finding the Fourth Proportional to 1,315,443, 1,815,312.96 and 711,831

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Solution

The fourth proportional to 1,315,443, 1,815,312.96 and 711,831 is: 982,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,443 : 1,815,312.96 = 711,831 : x
  2. Step 2: Convert to fraction form
    1,315,443/1,815,312.96 = 711,831/x
  3. Step 3: Cross multiply
    1,315,443x = 1,815,312.96 × 711,831
  4. Step 4: Simplify right side
    1,315,443x = 1,292,196,039,629.76
  5. Step 5: Solve for x
    x = 1,292,196,039,629.76/1,315,443
  6. Step 6: Final answer
    x = 982,327.66

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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.