Home / 766,628.50-1,057,903.32-439,872.34

Finding the Fourth Proportional to 766,628.50, 1,057,903.32 and 439,872.34

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Solution

The fourth proportional to 766,628.50, 1,057,903.32 and 439,872.34 is: 606,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,628.50 : 1,057,903.32 = 439,872.34 : x
  2. Step 2: Convert to fraction form
    766,628.50/1,057,903.32 = 439,872.34/x
  3. Step 3: Cross multiply
    766,628.50x = 1,057,903.32 × 439,872.34
  4. Step 4: Simplify right side
    766,628.50x = 465,342,408,862.17
  5. Step 5: Solve for x
    x = 465,342,408,862.17/766,628.50
  6. Step 6: Final answer
    x = 606,998.58

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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.