Home / 748,645.40-1,123,016.70-394,351.40

Finding the Fourth Proportional to 748,645.40, 1,123,016.70 and 394,351.40

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Solution

The fourth proportional to 748,645.40, 1,123,016.70 and 394,351.40 is: 591,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,645.40 : 1,123,016.70 = 394,351.40 : x
  2. Step 2: Convert to fraction form
    748,645.40/1,123,016.70 = 394,351.40/x
  3. Step 3: Cross multiply
    748,645.40x = 1,123,016.70 × 394,351.40
  4. Step 4: Simplify right side
    748,645.40x = 442,863,207,868.38
  5. Step 5: Solve for x
    x = 442,863,207,868.38/748,645.40
  6. Step 6: Final answer
    x = 591,552.70

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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.