Home / 739,040.67-1,019,803.97-428,895.02

Finding the Fourth Proportional to 739,040.67, 1,019,803.97 and 428,895.02

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Solution

The fourth proportional to 739,040.67, 1,019,803.97 and 428,895.02 is: 591,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,040.67 : 1,019,803.97 = 428,895.02 : x
  2. Step 2: Convert to fraction form
    739,040.67/1,019,803.97 = 428,895.02/x
  3. Step 3: Cross multiply
    739,040.67x = 1,019,803.97 × 428,895.02
  4. Step 4: Simplify right side
    739,040.67x = 437,388,844,109.23
  5. Step 5: Solve for x
    x = 437,388,844,109.23/739,040.67
  6. Step 6: Final answer
    x = 591,833.25

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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.