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Finding the Fourth Proportional to 481,444.28, 722,317.56 and 289,539.56

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Solution

The fourth proportional to 481,444.28, 722,317.56 and 289,539.56 is: 434,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,444.28 : 722,317.56 = 289,539.56 : x
  2. Step 2: Convert to fraction form
    481,444.28/722,317.56 = 289,539.56/x
  3. Step 3: Cross multiply
    481,444.28x = 722,317.56 × 289,539.56
  4. Step 4: Simplify right side
    481,444.28x = 209,139,508,502.67
  5. Step 5: Solve for x
    x = 209,139,508,502.67/481,444.28
  6. Step 6: Final answer
    x = 434,400.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.