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Finding the Fourth Proportional to 552,407.12, 762,426.63 and 345,771.39

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Solution

The fourth proportional to 552,407.12, 762,426.63 and 345,771.39 is: 477,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,407.12 : 762,426.63 = 345,771.39 : x
  2. Step 2: Convert to fraction form
    552,407.12/762,426.63 = 345,771.39/x
  3. Step 3: Cross multiply
    552,407.12x = 762,426.63 × 345,771.39
  4. Step 4: Simplify right side
    552,407.12x = 263,625,315,628.12
  5. Step 5: Solve for x
    x = 263,625,315,628.12/552,407.12
  6. Step 6: Final answer
    x = 477,230.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.