Home / 738,758.33-1,019,442.63-428,636.94

Finding the Fourth Proportional to 738,758.33, 1,019,442.63 and 428,636.94

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Solution

The fourth proportional to 738,758.33, 1,019,442.63 and 428,636.94 is: 591,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,758.33 : 1,019,442.63 = 428,636.94 : x
  2. Step 2: Convert to fraction form
    738,758.33/1,019,442.63 = 428,636.94/x
  3. Step 3: Cross multiply
    738,758.33x = 1,019,442.63 × 428,636.94
  4. Step 4: Simplify right side
    738,758.33x = 436,970,769,428.75
  5. Step 5: Solve for x
    x = 436,970,769,428.75/738,758.33
  6. Step 6: Final answer
    x = 591,493.53

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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.