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Finding the Fourth Proportional to 536,624.28, 803,607.80 and 394,131.66

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Solution

The fourth proportional to 536,624.28, 803,607.80 and 394,131.66 is: 590,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,624.28 : 803,607.80 = 394,131.66 : x
  2. Step 2: Convert to fraction form
    536,624.28/803,607.80 = 394,131.66/x
  3. Step 3: Cross multiply
    536,624.28x = 803,607.80 × 394,131.66
  4. Step 4: Simplify right side
    536,624.28x = 316,727,276,202.95
  5. Step 5: Solve for x
    x = 316,727,276,202.95/536,624.28
  6. Step 6: Final answer
    x = 590,221.67

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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.