Home / 785,215.92-1,178,011.80-252,786.72

Finding the Fourth Proportional to 785,215.92, 1,178,011.80 and 252,786.72

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Solution

The fourth proportional to 785,215.92, 1,178,011.80 and 252,786.72 is: 379,240.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,215.92 : 1,178,011.80 = 252,786.72 : x
  2. Step 2: Convert to fraction form
    785,215.92/1,178,011.80 = 252,786.72/x
  3. Step 3: Cross multiply
    785,215.92x = 1,178,011.80 × 252,786.72
  4. Step 4: Simplify right side
    785,215.92x = 297,785,739,043.30
  5. Step 5: Solve for x
    x = 297,785,739,043.30/785,215.92
  6. Step 6: Final answer
    x = 379,240.58

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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.