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Finding the Fourth Proportional to 617,401.40, 851,743.60 and 362,637.76

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Solution

The fourth proportional to 617,401.40, 851,743.60 and 362,637.76 is: 500,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,401.40 : 851,743.60 = 362,637.76 : x
  2. Step 2: Convert to fraction form
    617,401.40/851,743.60 = 362,637.76/x
  3. Step 3: Cross multiply
    617,401.40x = 851,743.60 × 362,637.76
  4. Step 4: Simplify right side
    617,401.40x = 308,874,391,198.34
  5. Step 5: Solve for x
    x = 308,874,391,198.34/617,401.40
  6. Step 6: Final answer
    x = 500,281.33

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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.