Home / 750,724.68-1,036,016.90-428,428.36

Finding the Fourth Proportional to 750,724.68, 1,036,016.90 and 428,428.36

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Solution

The fourth proportional to 750,724.68, 1,036,016.90 and 428,428.36 is: 591,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,724.68 : 1,036,016.90 = 428,428.36 : x
  2. Step 2: Convert to fraction form
    750,724.68/1,036,016.90 = 428,428.36/x
  3. Step 3: Cross multiply
    750,724.68x = 1,036,016.90 × 428,428.36
  4. Step 4: Simplify right side
    750,724.68x = 443,859,021,399.28
  5. Step 5: Solve for x
    x = 443,859,021,399.28/750,724.68
  6. Step 6: Final answer
    x = 591,240.75

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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.