Home / 748,893.39-1,123,620.71-388,839.48

Finding the Fourth Proportional to 748,893.39, 1,123,620.71 and 388,839.48

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Solution

The fourth proportional to 748,893.39, 1,123,620.71 and 388,839.48 is: 583,404.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,893.39 : 1,123,620.71 = 388,839.48 : x
  2. Step 2: Convert to fraction form
    748,893.39/1,123,620.71 = 388,839.48/x
  3. Step 3: Cross multiply
    748,893.39x = 1,123,620.71 × 388,839.48
  4. Step 4: Simplify right side
    748,893.39x = 436,908,090,649.43
  5. Step 5: Solve for x
    x = 436,908,090,649.43/748,893.39
  6. Step 6: Final answer
    x = 583,404.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.