Home / 629,054.76-868,089.60-342,579.63

Finding the Fourth Proportional to 629,054.76, 868,089.60 and 342,579.63

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Solution

The fourth proportional to 629,054.76, 868,089.60 and 342,579.63 is: 472,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,054.76 : 868,089.60 = 342,579.63 : x
  2. Step 2: Convert to fraction form
    629,054.76/868,089.60 = 342,579.63/x
  3. Step 3: Cross multiply
    629,054.76x = 868,089.60 × 342,579.63
  4. Step 4: Simplify right side
    629,054.76x = 297,389,813,974.85
  5. Step 5: Solve for x
    x = 297,389,813,974.85/629,054.76
  6. Step 6: Final answer
    x = 472,756.64

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1.5x scale

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.