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Finding the Fourth Proportional to 543,353.70, 815,030.55 and 492,615.30

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Solution

The fourth proportional to 543,353.70, 815,030.55 and 492,615.30 is: 738,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,353.70 : 815,030.55 = 492,615.30 : x
  2. Step 2: Convert to fraction form
    543,353.70/815,030.55 = 492,615.30/x
  3. Step 3: Cross multiply
    543,353.70x = 815,030.55 × 492,615.30
  4. Step 4: Simplify right side
    543,353.70x = 401,496,518,897.42
  5. Step 5: Solve for x
    x = 401,496,518,897.42/543,353.70
  6. Step 6: Final answer
    x = 738,922.95

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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.