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Finding the Fourth Proportional to 539,144.96, 743,690.36 and 345,487.48

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Solution

The fourth proportional to 539,144.96, 743,690.36 and 345,487.48 is: 476,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,144.96 : 743,690.36 = 345,487.48 : x
  2. Step 2: Convert to fraction form
    539,144.96/743,690.36 = 345,487.48/x
  3. Step 3: Cross multiply
    539,144.96x = 743,690.36 × 345,487.48
  4. Step 4: Simplify right side
    539,144.96x = 256,935,708,376.69
  5. Step 5: Solve for x
    x = 256,935,708,376.69/539,144.96
  6. Step 6: Final answer
    x = 476,561.46

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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.