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Finding the Fourth Proportional to 554,299.40, 829,369.02 and 328,834.28

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Solution

The fourth proportional to 554,299.40, 829,369.02 and 328,834.28 is: 492,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,299.40 : 829,369.02 = 328,834.28 : x
  2. Step 2: Convert to fraction form
    554,299.40/829,369.02 = 328,834.28/x
  3. Step 3: Cross multiply
    554,299.40x = 829,369.02 × 328,834.28
  4. Step 4: Simplify right side
    554,299.40x = 272,724,964,546.01
  5. Step 5: Solve for x
    x = 272,724,964,546.01/554,299.40
  6. Step 6: Final answer
    x = 492,017.43

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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.