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Finding the Fourth Proportional to 544,988.20, 816,704.70 and 401,715.40

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Solution

The fourth proportional to 544,988.20, 816,704.70 and 401,715.40 is: 601,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,988.20 : 816,704.70 = 401,715.40 : x
  2. Step 2: Convert to fraction form
    544,988.20/816,704.70 = 401,715.40/x
  3. Step 3: Cross multiply
    544,988.20x = 816,704.70 × 401,715.40
  4. Step 4: Simplify right side
    544,988.20x = 328,082,855,242.38
  5. Step 5: Solve for x
    x = 328,082,855,242.38/544,988.20
  6. Step 6: Final answer
    x = 601,999.92

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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.