Home / 750,919.87-1,036,343.73-428,678.38

Finding the Fourth Proportional to 750,919.87, 1,036,343.73 and 428,678.38

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Solution

The fourth proportional to 750,919.87, 1,036,343.73 and 428,678.38 is: 591,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,919.87 : 1,036,343.73 = 428,678.38 : x
  2. Step 2: Convert to fraction form
    750,919.87/1,036,343.73 = 428,678.38/x
  3. Step 3: Cross multiply
    750,919.87x = 1,036,343.73 × 428,678.38
  4. Step 4: Simplify right side
    750,919.87x = 444,258,151,299.56
  5. Step 5: Solve for x
    x = 444,258,151,299.56/750,919.87
  6. Step 6: Final answer
    x = 591,618.59

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1.5x scale

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.