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Finding the Fourth Proportional to 679,202, 937,329.56 and 377,396

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Solution

The fourth proportional to 679,202, 937,329.56 and 377,396 is: 520,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,202 : 937,329.56 = 377,396 : x
  2. Step 2: Convert to fraction form
    679,202/937,329.56 = 377,396/x
  3. Step 3: Cross multiply
    679,202x = 937,329.56 × 377,396
  4. Step 4: Simplify right side
    679,202x = 353,744,426,625.76
  5. Step 5: Solve for x
    x = 353,744,426,625.76/679,202
  6. Step 6: Final answer
    x = 520,823.59

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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.