Home / 771,145.92-1,156,684.86-210,180.42

Finding the Fourth Proportional to 771,145.92, 1,156,684.86 and 210,180.42

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Solution

The fourth proportional to 771,145.92, 1,156,684.86 and 210,180.42 is: 315,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,145.92 : 1,156,684.86 = 210,180.42 : x
  2. Step 2: Convert to fraction form
    771,145.92/1,156,684.86 = 210,180.42/x
  3. Step 3: Cross multiply
    771,145.92x = 1,156,684.86 × 210,180.42
  4. Step 4: Simplify right side
    771,145.92x = 243,112,509,682.44
  5. Step 5: Solve for x
    x = 243,112,509,682.44/771,145.92
  6. Step 6: Final answer
    x = 315,261.36

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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.