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Finding the Fourth Proportional to 555,600.42, 766,728.63 and 300,951.59

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Solution

The fourth proportional to 555,600.42, 766,728.63 and 300,951.59 is: 415,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,600.42 : 766,728.63 = 300,951.59 : x
  2. Step 2: Convert to fraction form
    555,600.42/766,728.63 = 300,951.59/x
  3. Step 3: Cross multiply
    555,600.42x = 766,728.63 × 300,951.59
  4. Step 4: Simplify right side
    555,600.42x = 230,748,196,463.38
  5. Step 5: Solve for x
    x = 230,748,196,463.38/555,600.42
  6. Step 6: Final answer
    x = 415,313.21

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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.