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Finding the Fourth Proportional to 543,777, 750,684.92 and 339,941.20

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Solution

The fourth proportional to 543,777, 750,684.92 and 339,941.20 is: 469,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,777 : 750,684.92 = 339,941.20 : x
  2. Step 2: Convert to fraction form
    543,777/750,684.92 = 339,941.20/x
  3. Step 3: Cross multiply
    543,777x = 750,684.92 × 339,941.20
  4. Step 4: Simplify right side
    543,777x = 255,188,732,526.70
  5. Step 5: Solve for x
    x = 255,188,732,526.70/543,777
  6. Step 6: Final answer
    x = 469,289.31

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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.