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Finding the Fourth Proportional to 617,972.41, 852,874.72 and 345,987.75

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Solution

The fourth proportional to 617,972.41, 852,874.72 and 345,987.75 is: 477,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,972.41 : 852,874.72 = 345,987.75 : x
  2. Step 2: Convert to fraction form
    617,972.41/852,874.72 = 345,987.75/x
  3. Step 3: Cross multiply
    617,972.41x = 852,874.72 × 345,987.75
  4. Step 4: Simplify right side
    617,972.41x = 295,084,207,737.99
  5. Step 5: Solve for x
    x = 295,084,207,737.99/617,972.41
  6. Step 6: Final answer
    x = 477,503.85

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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.