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Finding the Fourth Proportional to 557,813.20, 836,136.60 and 304,704.40

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Solution

The fourth proportional to 557,813.20, 836,136.60 and 304,704.40 is: 456,738.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,813.20 : 836,136.60 = 304,704.40 : x
  2. Step 2: Convert to fraction form
    557,813.20/836,136.60 = 304,704.40/x
  3. Step 3: Cross multiply
    557,813.20x = 836,136.60 × 304,704.40
  4. Step 4: Simplify right side
    557,813.20x = 254,774,501,021.04
  5. Step 5: Solve for x
    x = 254,774,501,021.04/557,813.20
  6. Step 6: Final answer
    x = 456,738.03

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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.