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Finding the Fourth Proportional to 679,634, 937,896 and 377,828

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Solution

The fourth proportional to 679,634, 937,896 and 377,828 is: 521,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,634 : 937,896 = 377,828 : x
  2. Step 2: Convert to fraction form
    679,634/937,896 = 377,828/x
  3. Step 3: Cross multiply
    679,634x = 937,896 × 377,828
  4. Step 4: Simplify right side
    679,634x = 354,363,369,888
  5. Step 5: Solve for x
    x = 354,363,369,888/679,634
  6. Step 6: Final answer
    x = 521,403.24

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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.