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Finding the Fourth Proportional to 629,387.66, 868,564.93 and 342,907.66

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Solution

The fourth proportional to 629,387.66, 868,564.93 and 342,907.66 is: 473,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,387.66 : 868,564.93 = 342,907.66 : x
  2. Step 2: Convert to fraction form
    629,387.66/868,564.93 = 342,907.66/x
  3. Step 3: Cross multiply
    629,387.66x = 868,564.93 × 342,907.66
  4. Step 4: Simplify right side
    629,387.66x = 297,837,567,704.36
  5. Step 5: Solve for x
    x = 297,837,567,704.36/629,387.66
  6. Step 6: Final answer
    x = 473,218.00

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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.