Home / 750,865.87-1,036,269.21-428,624.38

Finding the Fourth Proportional to 750,865.87, 1,036,269.21 and 428,624.38

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Solution

The fourth proportional to 750,865.87, 1,036,269.21 and 428,624.38 is: 591,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,865.87 : 1,036,269.21 = 428,624.38 : x
  2. Step 2: Convert to fraction form
    750,865.87/1,036,269.21 = 428,624.38/x
  3. Step 3: Cross multiply
    750,865.87x = 1,036,269.21 × 428,624.38
  4. Step 4: Simplify right side
    750,865.87x = 444,170,247,649.34
  5. Step 5: Solve for x
    x = 444,170,247,649.34/750,865.87
  6. Step 6: Final answer
    x = 591,544.06

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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.