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Finding the Fourth Proportional to 550,572.99, 759,825.63 and 308,871.21

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Solution

The fourth proportional to 550,572.99, 759,825.63 and 308,871.21 is: 426,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,572.99 : 759,825.63 = 308,871.21 : x
  2. Step 2: Convert to fraction form
    550,572.99/759,825.63 = 308,871.21/x
  3. Step 3: Cross multiply
    550,572.99x = 759,825.63 × 308,871.21
  4. Step 4: Simplify right side
    550,572.99x = 234,688,261,727.11
  5. Step 5: Solve for x
    x = 234,688,261,727.11/550,572.99
  6. Step 6: Final answer
    x = 426,261.85

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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.