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Finding the Fourth Proportional to 550,512.30, 769,784.10 and 550,512.30

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Solution

The fourth proportional to 550,512.30, 769,784.10 and 550,512.30 is: 769,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,512.30 : 769,784.10 = 550,512.30 : x
  2. Step 2: Convert to fraction form
    550,512.30/769,784.10 = 550,512.30/x
  3. Step 3: Cross multiply
    550,512.30x = 769,784.10 × 550,512.30
  4. Step 4: Simplify right side
    550,512.30x = 423,775,615,394.43
  5. Step 5: Solve for x
    x = 423,775,615,394.43/550,512.30
  6. Step 6: Final answer
    x = 769,784.10

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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.