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Finding the Fourth Proportional to 519,846.60, 779,186.70 and 267,029.40

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Solution

The fourth proportional to 519,846.60, 779,186.70 and 267,029.40 is: 400,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,846.60 : 779,186.70 = 267,029.40 : x
  2. Step 2: Convert to fraction form
    519,846.60/779,186.70 = 267,029.40/x
  3. Step 3: Cross multiply
    519,846.60x = 779,186.70 × 267,029.40
  4. Step 4: Simplify right side
    519,846.60x = 208,065,756,988.98
  5. Step 5: Solve for x
    x = 208,065,756,988.98/519,846.60
  6. Step 6: Final answer
    x = 400,244.53

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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.