Home / 1,077,157.82-1,615,512.86-318,821.34

Finding the Fourth Proportional to 1,077,157.82, 1,615,512.86 and 318,821.34

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Solution

The fourth proportional to 1,077,157.82, 1,615,512.86 and 318,821.34 is: 478,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,157.82 : 1,615,512.86 = 318,821.34 : x
  2. Step 2: Convert to fraction form
    1,077,157.82/1,615,512.86 = 318,821.34/x
  3. Step 3: Cross multiply
    1,077,157.82x = 1,615,512.86 × 318,821.34
  4. Step 4: Simplify right side
    1,077,157.82x = 515,059,971,384.82
  5. Step 5: Solve for x
    x = 515,059,971,384.82/1,077,157.82
  6. Step 6: Final answer
    x = 478,165.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.