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Finding the Fourth Proportional to 578,439.09, 798,254.33 and 333,288.54

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Solution

The fourth proportional to 578,439.09, 798,254.33 and 333,288.54 is: 459,943.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,439.09 : 798,254.33 = 333,288.54 : x
  2. Step 2: Convert to fraction form
    578,439.09/798,254.33 = 333,288.54/x
  3. Step 3: Cross multiply
    578,439.09x = 798,254.33 × 333,288.54
  4. Step 4: Simplify right side
    578,439.09x = 266,049,018,527.94
  5. Step 5: Solve for x
    x = 266,049,018,527.94/578,439.09
  6. Step 6: Final answer
    x = 459,943.01

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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.