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Finding the Fourth Proportional to 543,482.46, 811,563.91 and 443,840.31

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Solution

The fourth proportional to 543,482.46, 811,563.91 and 443,840.31 is: 662,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,482.46 : 811,563.91 = 443,840.31 : x
  2. Step 2: Convert to fraction form
    543,482.46/811,563.91 = 443,840.31/x
  3. Step 3: Cross multiply
    543,482.46x = 811,563.91 × 443,840.31
  4. Step 4: Simplify right side
    543,482.46x = 360,204,776,289.61
  5. Step 5: Solve for x
    x = 360,204,776,289.61/543,482.46
  6. Step 6: Final answer
    x = 662,771.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.