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Finding the Fourth Proportional to 437,857.80, 655,404.30 and 424,033.80

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Solution

The fourth proportional to 437,857.80, 655,404.30 and 424,033.80 is: 634,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,857.80 : 655,404.30 = 424,033.80 : x
  2. Step 2: Convert to fraction form
    437,857.80/655,404.30 = 424,033.80/x
  3. Step 3: Cross multiply
    437,857.80x = 655,404.30 × 424,033.80
  4. Step 4: Simplify right side
    437,857.80x = 277,913,575,865.34
  5. Step 5: Solve for x
    x = 277,913,575,865.34/437,857.80
  6. Step 6: Final answer
    x = 634,711.94

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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.