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Finding the Fourth Proportional to 543,955, 816,019.92 and 228,502.12

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Solution

The fourth proportional to 543,955, 816,019.92 and 228,502.12 is: 342,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,955 : 816,019.92 = 228,502.12 : x
  2. Step 2: Convert to fraction form
    543,955/816,019.92 = 228,502.12/x
  3. Step 3: Cross multiply
    543,955x = 816,019.92 × 228,502.12
  4. Step 4: Simplify right side
    543,955x = 186,462,281,682.23
  5. Step 5: Solve for x
    x = 186,462,281,682.23/543,955
  6. Step 6: Final answer
    x = 342,789.90

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1.5x scale

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.