Home / 766,493.32-1,057,771.78-439,859.56

Finding the Fourth Proportional to 766,493.32, 1,057,771.78 and 439,859.56

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Solution

The fourth proportional to 766,493.32, 1,057,771.78 and 439,859.56 is: 607,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,493.32 : 1,057,771.78 = 439,859.56 : x
  2. Step 2: Convert to fraction form
    766,493.32/1,057,771.78 = 439,859.56/x
  3. Step 3: Cross multiply
    766,493.32x = 1,057,771.78 × 439,859.56
  4. Step 4: Simplify right side
    766,493.32x = 465,271,029,731.22
  5. Step 5: Solve for x
    x = 465,271,029,731.22/766,493.32
  6. Step 6: Final answer
    x = 607,012.50

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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.