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Finding the Fourth Proportional to 617,473.65, 852,153.17 and 345,572.85

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Solution

The fourth proportional to 617,473.65, 852,153.17 and 345,572.85 is: 476,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,473.65 : 852,153.17 = 345,572.85 : x
  2. Step 2: Convert to fraction form
    617,473.65/852,153.17 = 345,572.85/x
  3. Step 3: Cross multiply
    617,473.65x = 852,153.17 × 345,572.85
  4. Step 4: Simplify right side
    617,473.65x = 294,480,997,865.57
  5. Step 5: Solve for x
    x = 294,480,997,865.57/617,473.65
  6. Step 6: Final answer
    x = 476,912.66

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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.