Home / 750,918.87-1,036,342.35-428,677.38

Finding the Fourth Proportional to 750,918.87, 1,036,342.35 and 428,677.38

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Solution

The fourth proportional to 750,918.87, 1,036,342.35 and 428,677.38 is: 591,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,918.87 : 1,036,342.35 = 428,677.38 : x
  2. Step 2: Convert to fraction form
    750,918.87/1,036,342.35 = 428,677.38/x
  3. Step 3: Cross multiply
    750,918.87x = 1,036,342.35 × 428,677.38
  4. Step 4: Simplify right side
    750,918.87x = 444,256,523,381.04
  5. Step 5: Solve for x
    x = 444,256,523,381.04/750,918.87
  6. Step 6: Final answer
    x = 591,617.21

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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.