Home / 545,156.19-752,315.47-303,433.54

Finding the Fourth Proportional to 545,156.19, 752,315.47 and 303,433.54

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Solution

The fourth proportional to 545,156.19, 752,315.47 and 303,433.54 is: 418,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,156.19 : 752,315.47 = 303,433.54 : x
  2. Step 2: Convert to fraction form
    545,156.19/752,315.47 = 303,433.54/x
  3. Step 3: Cross multiply
    545,156.19x = 752,315.47 × 303,433.54
  4. Step 4: Simplify right side
    545,156.19x = 228,277,743,619.49
  5. Step 5: Solve for x
    x = 228,277,743,619.49/545,156.19
  6. Step 6: Final answer
    x = 418,738.24

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Double scale
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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.