Home / 771,235.92-1,156,819.80-210,270.48

Finding the Fourth Proportional to 771,235.92, 1,156,819.80 and 210,270.48

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Solution

The fourth proportional to 771,235.92, 1,156,819.80 and 210,270.48 is: 315,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,235.92 : 1,156,819.80 = 210,270.48 : x
  2. Step 2: Convert to fraction form
    771,235.92/1,156,819.80 = 210,270.48/x
  3. Step 3: Cross multiply
    771,235.92x = 1,156,819.80 × 210,270.48
  4. Step 4: Simplify right side
    771,235.92x = 243,245,054,619.50
  5. Step 5: Solve for x
    x = 243,245,054,619.50/771,235.92
  6. Step 6: Final answer
    x = 315,396.43

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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.