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Finding the Fourth Proportional to 617,402.40, 851,744.98 and 362,638.76

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Solution

The fourth proportional to 617,402.40, 851,744.98 and 362,638.76 is: 500,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,402.40 : 851,744.98 = 362,638.76 : x
  2. Step 2: Convert to fraction form
    617,402.40/851,744.98 = 362,638.76/x
  3. Step 3: Cross multiply
    617,402.40x = 851,744.98 × 362,638.76
  4. Step 4: Simplify right side
    617,402.40x = 308,875,743,383.43
  5. Step 5: Solve for x
    x = 308,875,743,383.43/617,402.40
  6. Step 6: Final answer
    x = 500,282.71

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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.