Home / 629,219.09-868,322.72-342,740.45

Finding the Fourth Proportional to 629,219.09, 868,322.72 and 342,740.45

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Solution

The fourth proportional to 629,219.09, 868,322.72 and 342,740.45 is: 472,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,219.09 : 868,322.72 = 342,740.45 : x
  2. Step 2: Convert to fraction form
    629,219.09/868,322.72 = 342,740.45/x
  3. Step 3: Cross multiply
    629,219.09x = 868,322.72 × 342,740.45
  4. Step 4: Simplify right side
    629,219.09x = 297,609,319,798.02
  5. Step 5: Solve for x
    x = 297,609,319,798.02/629,219.09
  6. Step 6: Final answer
    x = 472,982.03

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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.