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Finding the Fourth Proportional to 617,251.40, 851,885.40 and 345,334.40

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Solution

The fourth proportional to 617,251.40, 851,885.40 and 345,334.40 is: 476,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,251.40 : 851,885.40 = 345,334.40 : x
  2. Step 2: Convert to fraction form
    617,251.40/851,885.40 = 345,334.40/x
  3. Step 3: Cross multiply
    617,251.40x = 851,885.40 × 345,334.40
  4. Step 4: Simplify right side
    617,251.40x = 294,185,333,477.76
  5. Step 5: Solve for x
    x = 294,185,333,477.76/617,251.40
  6. Step 6: Final answer
    x = 476,605.37

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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.