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Finding the Fourth Proportional to 629,427.61, 868,599.16 and 342,950.05

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Solution

The fourth proportional to 629,427.61, 868,599.16 and 342,950.05 is: 473,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,427.61 : 868,599.16 = 342,950.05 : x
  2. Step 2: Convert to fraction form
    629,427.61/868,599.16 = 342,950.05/x
  3. Step 3: Cross multiply
    629,427.61x = 868,599.16 × 342,950.05
  4. Step 4: Simplify right side
    629,427.61x = 297,886,125,351.96
  5. Step 5: Solve for x
    x = 297,886,125,351.96/629,427.61
  6. Step 6: Final answer
    x = 473,265.11

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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.