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Finding the Fourth Proportional to 510,771.59, 704,869.56 and 281,329.70

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Solution

The fourth proportional to 510,771.59, 704,869.56 and 281,329.70 is: 388,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,771.59 : 704,869.56 = 281,329.70 : x
  2. Step 2: Convert to fraction form
    510,771.59/704,869.56 = 281,329.70/x
  3. Step 3: Cross multiply
    510,771.59x = 704,869.56 × 281,329.70
  4. Step 4: Simplify right side
    510,771.59x = 198,300,740,972.85
  5. Step 5: Solve for x
    x = 198,300,740,972.85/510,771.59
  6. Step 6: Final answer
    x = 388,237.61

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1.5x scale

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.