Home / 750,807.85-1,036,131.56-428,511.46

Finding the Fourth Proportional to 750,807.85, 1,036,131.56 and 428,511.46

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Solution

The fourth proportional to 750,807.85, 1,036,131.56 and 428,511.46 is: 591,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,807.85 : 1,036,131.56 = 428,511.46 : x
  2. Step 2: Convert to fraction form
    750,807.85/1,036,131.56 = 428,511.46/x
  3. Step 3: Cross multiply
    750,807.85x = 1,036,131.56 × 428,511.46
  4. Step 4: Simplify right side
    750,807.85x = 443,994,247,527.68
  5. Step 5: Solve for x
    x = 443,994,247,527.68/750,807.85
  6. Step 6: Final answer
    x = 591,355.36

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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.