Home / 738,462.62-1,019,079.83-428,425.40

Finding the Fourth Proportional to 738,462.62, 1,019,079.83 and 428,425.40

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Solution

The fourth proportional to 738,462.62, 1,019,079.83 and 428,425.40 is: 591,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,462.62 : 1,019,079.83 = 428,425.40 : x
  2. Step 2: Convert to fraction form
    738,462.62/1,019,079.83 = 428,425.40/x
  3. Step 3: Cross multiply
    738,462.62x = 1,019,079.83 × 428,425.40
  4. Step 4: Simplify right side
    738,462.62x = 436,599,687,418.45
  5. Step 5: Solve for x
    x = 436,599,687,418.45/738,462.62
  6. Step 6: Final answer
    x = 591,227.88

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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.