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Finding the Fourth Proportional to 401,246.88, 602,810.52 and 378,549.40

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Solution

The fourth proportional to 401,246.88, 602,810.52 and 378,549.40 is: 568,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,246.88 : 602,810.52 = 378,549.40 : x
  2. Step 2: Convert to fraction form
    401,246.88/602,810.52 = 378,549.40/x
  3. Step 3: Cross multiply
    401,246.88x = 602,810.52 × 378,549.40
  4. Step 4: Simplify right side
    401,246.88x = 228,193,560,659.69
  5. Step 5: Solve for x
    x = 228,193,560,659.69/401,246.88
  6. Step 6: Final answer
    x = 568,711.12

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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.