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Finding the Fourth Proportional to 679,206, 937,335.08 and 377,400

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Solution

The fourth proportional to 679,206, 937,335.08 and 377,400 is: 520,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,206 : 937,335.08 = 377,400 : x
  2. Step 2: Convert to fraction form
    679,206/937,335.08 = 377,400/x
  3. Step 3: Cross multiply
    679,206x = 937,335.08 × 377,400
  4. Step 4: Simplify right side
    679,206x = 353,750,259,192
  5. Step 5: Solve for x
    x = 353,750,259,192/679,206
  6. Step 6: Final answer
    x = 520,829.11

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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.