Home / 313,942.92-427,444.98-312,946.44

Finding the Fourth Proportional to 313,942.92, 427,444.98 and 312,946.44

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Solution

The fourth proportional to 313,942.92, 427,444.98 and 312,946.44 is: 426,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,942.92 : 427,444.98 = 312,946.44 : x
  2. Step 2: Convert to fraction form
    313,942.92/427,444.98 = 312,946.44/x
  3. Step 3: Cross multiply
    313,942.92x = 427,444.98 × 312,946.44
  4. Step 4: Simplify right side
    313,942.92x = 133,767,384,786.87
  5. Step 5: Solve for x
    x = 133,767,384,786.87/313,942.92
  6. Step 6: Final answer
    x = 426,088.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.