Home / 674,240.86-930,480.66-387,761.17

Finding the Fourth Proportional to 674,240.86, 930,480.66 and 387,761.17

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Solution

The fourth proportional to 674,240.86, 930,480.66 and 387,761.17 is: 535,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,240.86 : 930,480.66 = 387,761.17 : x
  2. Step 2: Convert to fraction form
    674,240.86/930,480.66 = 387,761.17/x
  3. Step 3: Cross multiply
    674,240.86x = 930,480.66 × 387,761.17
  4. Step 4: Simplify right side
    674,240.86x = 360,804,269,383.97
  5. Step 5: Solve for x
    x = 360,804,269,383.97/674,240.86
  6. Step 6: Final answer
    x = 535,126.67

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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.