Home / 545,160.69-752,321.66-303,438.06

Finding the Fourth Proportional to 545,160.69, 752,321.66 and 303,438.06

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Solution

The fourth proportional to 545,160.69, 752,321.66 and 303,438.06 is: 418,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,160.69 : 752,321.66 = 303,438.06 : x
  2. Step 2: Convert to fraction form
    545,160.69/752,321.66 = 303,438.06/x
  3. Step 3: Cross multiply
    545,160.69x = 752,321.66 × 303,438.06
  4. Step 4: Simplify right side
    545,160.69x = 228,283,023,489.19
  5. Step 5: Solve for x
    x = 228,283,023,489.19/545,160.69
  6. Step 6: Final answer
    x = 418,744.47

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Double scale
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Similar ratio
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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.