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Finding the Fourth Proportional to 550,344.30, 769,548.90 and 550,344.30

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Solution

The fourth proportional to 550,344.30, 769,548.90 and 550,344.30 is: 769,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,344.30 : 769,548.90 = 550,344.30 : x
  2. Step 2: Convert to fraction form
    550,344.30/769,548.90 = 550,344.30/x
  3. Step 3: Cross multiply
    550,344.30x = 769,548.90 × 550,344.30
  4. Step 4: Simplify right side
    550,344.30x = 423,516,850,686.27
  5. Step 5: Solve for x
    x = 423,516,850,686.27/550,344.30
  6. Step 6: Final answer
    x = 769,548.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.