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Finding the Fourth Proportional to 557,387.40, 836,081.10 and 520,062.60

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Solution

The fourth proportional to 557,387.40, 836,081.10 and 520,062.60 is: 780,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,387.40 : 836,081.10 = 520,062.60 : x
  2. Step 2: Convert to fraction form
    557,387.40/836,081.10 = 520,062.60/x
  3. Step 3: Cross multiply
    557,387.40x = 836,081.10 × 520,062.60
  4. Step 4: Simplify right side
    557,387.40x = 434,814,510,676.86
  5. Step 5: Solve for x
    x = 434,814,510,676.86/557,387.40
  6. Step 6: Final answer
    x = 780,093.90

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.