Home / 284,529.78-426,794.70-84,990.36

Finding the Fourth Proportional to 284,529.78, 426,794.70 and 84,990.36

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Solution

The fourth proportional to 284,529.78, 426,794.70 and 84,990.36 is: 127,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,529.78 : 426,794.70 = 84,990.36 : x
  2. Step 2: Convert to fraction form
    284,529.78/426,794.70 = 84,990.36/x
  3. Step 3: Cross multiply
    284,529.78x = 426,794.70 × 84,990.36
  4. Step 4: Simplify right side
    284,529.78x = 36,273,435,199.09
  5. Step 5: Solve for x
    x = 36,273,435,199.09/284,529.78
  6. Step 6: Final answer
    x = 127,485.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.