Home / 750,684.90-1,036,019.64-428,443.81

Finding the Fourth Proportional to 750,684.90, 1,036,019.64 and 428,443.81

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Solution

The fourth proportional to 750,684.90, 1,036,019.64 and 428,443.81 is: 591,294.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,684.90 : 1,036,019.64 = 428,443.81 : x
  2. Step 2: Convert to fraction form
    750,684.90/1,036,019.64 = 428,443.81/x
  3. Step 3: Cross multiply
    750,684.90x = 1,036,019.64 × 428,443.81
  4. Step 4: Simplify right side
    750,684.90x = 443,876,201,796.43
  5. Step 5: Solve for x
    x = 443,876,201,796.43/750,684.90
  6. Step 6: Final answer
    x = 591,294.97

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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.