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Finding the Fourth Proportional to 679,107.50, 937,197.51 and 377,301.50

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Solution

The fourth proportional to 679,107.50, 937,197.51 and 377,301.50 is: 520,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,107.50 : 937,197.51 = 377,301.50 : x
  2. Step 2: Convert to fraction form
    679,107.50/937,197.51 = 377,301.50/x
  3. Step 3: Cross multiply
    679,107.50x = 937,197.51 × 377,301.50
  4. Step 4: Simplify right side
    679,107.50x = 353,606,026,319.27
  5. Step 5: Solve for x
    x = 353,606,026,319.27/679,107.50
  6. Step 6: Final answer
    x = 520,692.27

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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.