Home / 545,218.14-752,471.67-312,735.79

Finding the Fourth Proportional to 545,218.14, 752,471.67 and 312,735.79

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Solution

The fourth proportional to 545,218.14, 752,471.67 and 312,735.79 is: 431,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,218.14 : 752,471.67 = 312,735.79 : x
  2. Step 2: Convert to fraction form
    545,218.14/752,471.67 = 312,735.79/x
  3. Step 3: Cross multiply
    545,218.14x = 752,471.67 × 312,735.79
  4. Step 4: Simplify right side
    545,218.14x = 235,324,822,170.07
  5. Step 5: Solve for x
    x = 235,324,822,170.07/545,218.14
  6. Step 6: Final answer
    x = 431,615.91

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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.