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Finding the Fourth Proportional to 679,204, 937,332.32 and 377,398

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Solution

The fourth proportional to 679,204, 937,332.32 and 377,398 is: 520,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,204 : 937,332.32 = 377,398 : x
  2. Step 2: Convert to fraction form
    679,204/937,332.32 = 377,398/x
  3. Step 3: Cross multiply
    679,204x = 937,332.32 × 377,398
  4. Step 4: Simplify right side
    679,204x = 353,747,342,903.36
  5. Step 5: Solve for x
    x = 353,747,342,903.36/679,204
  6. Step 6: Final answer
    x = 520,826.35

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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.