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Finding the Fourth Proportional to 617,056.37, 851,531.49 and 345,123.62

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Solution

The fourth proportional to 617,056.37, 851,531.49 and 345,123.62 is: 476,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,056.37 : 851,531.49 = 345,123.62 : x
  2. Step 2: Convert to fraction form
    617,056.37/851,531.49 = 345,123.62/x
  3. Step 3: Cross multiply
    617,056.37x = 851,531.49 × 345,123.62
  4. Step 4: Simplify right side
    617,056.37x = 293,883,630,372.79
  5. Step 5: Solve for x
    x = 293,883,630,372.79/617,056.37
  6. Step 6: Final answer
    x = 476,267.07

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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.