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Finding the Fourth Proportional to 534,707.76, 737,847.64 and 308,309.52

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Solution

The fourth proportional to 534,707.76, 737,847.64 and 308,309.52 is: 425,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,707.76 : 737,847.64 = 308,309.52 : x
  2. Step 2: Convert to fraction form
    534,707.76/737,847.64 = 308,309.52/x
  3. Step 3: Cross multiply
    534,707.76x = 737,847.64 × 308,309.52
  4. Step 4: Simplify right side
    534,707.76x = 227,485,451,721.53
  5. Step 5: Solve for x
    x = 227,485,451,721.53/534,707.76
  6. Step 6: Final answer
    x = 425,438.84

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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.