Home / 771,338.68-1,156,889.22-210,416.92

Finding the Fourth Proportional to 771,338.68, 1,156,889.22 and 210,416.92

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Solution

The fourth proportional to 771,338.68, 1,156,889.22 and 210,416.92 is: 315,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,338.68 : 1,156,889.22 = 210,416.92 : x
  2. Step 2: Convert to fraction form
    771,338.68/1,156,889.22 = 210,416.92/x
  3. Step 3: Cross multiply
    771,338.68x = 1,156,889.22 × 210,416.92
  4. Step 4: Simplify right side
    771,338.68x = 243,429,066,453.60
  5. Step 5: Solve for x
    x = 243,429,066,453.60/771,338.68
  6. Step 6: Final answer
    x = 315,592.97

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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.